I tend to trust charts over anything else.. Websites and sources of information (including news and especially signals) can be manipulated, and I find charts don't really lie. Its okay if you disagree, but I'm gonna give my outside of the box answer.
Going to go a bit on a tangent here but charts, in my opinion, measure human sentiment and reaction to price action. For example I know most people think price action is caused by the news but most people "look for news" after seeing the price jump or drop. This to me is illogical. This would be like in philosophy if you formed a conclusion first then attached premises to support that argument instead of using premises to form a conclusion. People hate the idea of chaos which is why price has to be justified for a reason.. other than it simply just dropped or went up. So back to the human sentiment thing being a catalyst that is measured in charts.. when a price goes up or down, the story a chart tells you is what percentage of people did what with that information.. if something is dropping for example.. certain percentages of whales will dump, smart money will follow, certain people after them will take profits, late reactors will split into two groups.. one will sell at break even.. one will decide to close the chart and do something else out of frustration.. others will panic sell.. others will refuse. A major support area will be broken and people will enter into full capitulation and accumulation will begin. Looking for what phase people are in by learning to read charts and what percentages of people are left can really help you get closer to the bottom on buys, and react quickly enough and not fomo when looking to lock in profits. News and announcements and telegram chats and your friends rejoicing or complaining is all emotional, and really hides you from seeing the underlying truth that is right there without any of the noise. Even if you use all of the other things you're talking about, really study charts and see if you can predict what people will do, who are the ones doing what and where, and how can you not follow the same patterns they are to start trading more successfully.
One other thing about signals... I wrote a write-up signal groups and why you should ignore all of them that I'll quote here, the "bigger picture" is these people are using you.. even if you win, also has a few useful links that I found useful when starting out.
I'm brand new to this and excited to get started but also don't know where to begin. I've been looking into services that offer education as well as give you alerts on specific trades they see as potentially profitable. Anyone have any suggestions on a reputable, affordable service? I've been looking specifically at Crypto Investing Insider. The reviews I've seen have been good. Can anybody give me some direction, it would be much appreciated. Thanks!

The problem with any sort of paid service or even free ones when it comes to following trades, is the information is gonna be heavily biased towards the person offering it to you over helping you.. here are some examples.
1) Could be selling a class for crypto noobies... the class offers overly generic information that could be found anywhere for free but could be useful information for someone who is just starting out.
2) The information could be offering one way to trade, but that strategy might not be appropriate for your portfolio size or risk level. You definitely would trade differently with 1 million dollars compared to 1 thousand.
3) Signal groups for trades can be a self-fulfilling prophecy but you never really know the person offering the information is being legit. They may know some sort of news.. but they could just as easily be trying to pump the price because they are bag holding. Since everyone makes mistakes and no ones perfect, they could just write this off as a mistake later with really no harm coming from shilling you their bags.
4) The information is somewhat useful but leaves out important info that is necessary for applying it. You may get information on arbitrage for example but if you're only intent on working with one exchange, this information no matter how useful won't apply for you.
So here's a couple I suggest, they don't talk anything about specific trades.
https://www.youtube.com/channel/UCvQ12D5GqyW1qtM0a3Qpwcw - this guy's training videos are very basic, but some useful information on how to setup charts correctly (color, gridlines, basic trend lines, fibonacci extensions, etc)
https://www.babypips.com/ - this site is super useful for learning about candle patterns on charts
https://www.youtube.com/channel/UCbcxHiowf0TSNKn3xVpGTiQ - I don't really use this guy's method, but the way he relates to support/resistance can be incredibly useful for beginners. Sometimes information you don't use can open your mind to a different way of thinking.
The absolute most important thing in trading is buying low and selling high. It sounds so crazy but almost no one follows this. You have to buy when things are red and you have to let go of them when things are green, without worry of missing out or fear of it going to zero. How you go about your entries and exits you can work on through technical analysis and understanding all the cause and effect things in the market (like how btc price affects altcoins in every possible scenario), but if you aren't willing to buy low and sell high, you will never make it in this game, emotion has to stay out of it. Emotional people who follow others will get rekt by whales in this market and scared to death by noobs who panic sell and want others to follow them. Learn the right principles of trading and start slow, if you
don't have much money, just paper trade all day long. When I first started I was scared to death, so I started doing 100 paper trades a day and until I was breaking over 50% I didn't invest any real money. Not trying to scare you I just want to make sure you are getting the right information quickly enough (because people just starting out are willing to accept advice more than those who have done it a long time, you just aren't as defensive of criticism) for it to make the largest amount of difference.
Good luck.