- Search for few basic guides on crypto trading before you start and also learn about margin trading and how stop-limit works.
- There are different threads here in forum with same question like yours, go through them.
- Never panic and always sell for profit not for loss.
- Don't be emotional with any coin, sell when it pumps.
- Invest in multiple coins to diversify your risk.
Good luck...
Fortunately, there are so many resources online now that one can make use of and it is just that a lot of newbies in trading are always too lazy to read and as long as anyone is lazy to read, they should be ready to lose a whole lot. I have been there and I know how it feels trading without knowledge but you will get so confident, realize some of the mistakes you have made and could have averted once you start reading.
Also, with the last statement, I would advise not to put too much in so many coins than you can handle at once, as that can be hectic. It is best to just invest in the little you are sure of based on your analysis unless for long term traders anyway.