I want to start investing for ico and trading. Please to help from where should I start?
Your question is not unique, you see. There are many topics here with all of the answers you're looking for. I don't think someone will start explaining you everything again from the start, probably for the hundredth time. You've almost made a half of a deal. You've created an account here and now you have a free access to the tons of different kind of information. All you need to do is spend some time to search, read, learn.
What needs to be prepared and cared for before starting it?
You need to learn at least some basics (the more you know the better) about ICO, trading and crypto in general before taking any action.
for trading if we have a pretty good strategy and have the potential to generate substantial profits. able to produce according to our plan. indeed for this trading is very capable of generating big profits depending on the strategy that we have.