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.

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.