My top tip is this: both bitcoin and alts have flash crashes from time to time, and the way to take advantage is to set very low buy orders well in advance.
Sometimes you have to wait months for the orders to execute, but then it's extremely profitable because the price rebounds back and you sell at a decent profit.
You must be a very patient person to wait for that long.

We see in the few month ago that bitcoin pump so hard and reach 22 k dolar and then he come down again till 6k and now is stable betwen 9.5 k till 11k so the new investor they are scared of buy bitcoin in that time that why i give 5 good tips can help them to have they right the decision 1
1. Start Small
You should start with small amount like 30 percent from ur capital invest
2. Do they Groundwork
Before you jump into the world of bitcoin, you need to read up on the subject.
The more you understand, the better off you will be. Yes, bitcoin can offer a unique opportunity, but an understanding of the surrounding areas is recommended. For instance, gain knowledge of the underlying technology, and how blockchains work.
3. Learn to value coins in BTC
Bitcoin is the current primary currency of the crypto economy (i.e., its what you have to use to buy most altcoins
4. Keep Your Coins In Wallets
While exchanges are a great place to purchase digital currencies, they may not be the best place to hold such assets.
5. Learn Technical Analysis
Technical Analysis (TA) is the analyzing of price and volume data and trying to predict future trends based on that.
I think it is better to diversify your bitcoin and altcoins at the same time since bitcoin price is not stable nowadays and is keep going up and down due to the fluctuation.
Those tips above are helpful but i guess you missed some of the tips.
