as someone that is new to the system, the first thing you should know is that you need to Buy the DIP. You might not necessarily understand how the DCA method works but after buying you can now work on best ways to accumulate more holding and that's where using the DCA method comes in.

And like you rightly pointed out, Buying of bitcoin doesn't require a complex knowledge, the most important thing you need to know before buying as a new person is the right time to buy. Once you know the right time to buy, then you've successfully launched yourself into an amazing Bitcoin journey.

With regards to getting knowledge a long your Bitcoin holding journey, it's necessary you know what's happening in the industry and follow up discussions to know when to expect a possible bull run which will guide you on selling at the right time. Knowledge related to your security is also something very important for a new person that has bunch of holdings because if your security is compromised, your holdings is in serious risk and all your accumulation could go overnight so the right thing to do is to get the basic knowledge on the right time to buy, then you buy the quantity that you're comfortable with and then ensure you put out the best security measures in place that will prevent your holdings from being taken from you.

The rest of the knowledge that you will need all available on the forum and by following and inquiring from discussions in the forum, you will do just fine as you climb the ladder of your Bitcoin investment journey.