To what i think on my own view i don't know if i can get more knowledge and understanding to this.
You just have to understand the market, you need to be able to study and know when it’s a right time for you to invest and withdraw your crypto currency. And also remember only invest money you know you can make back even if you lose the money.
Ironically you have just given the antidote to your own ailment and I don't think there's much to say as the basics to starting crypto trade you OP have already outlined in your thread.
That been said, keep greed out of your trading, for it had made many traders loss a fortune within a very short period