If you don't feel confident enough, you can consider being an investor at a trading platform and let more experienced traders do the work for you. There are projects that allow you to pick traders based on their portfolios and expertise. I'm a new in this myself, but I think I risk less being an investor, as there's so much to learn and take into account to get good profit. So it might be logical to use other people's skills and knowledge.
Idk, you need to be sure that they are good. Seems hard to check.
Looks like poloniex has features like this, isnt it? but of course you have to know the skills and knowledge that he has, don't let you choose someone who is not credible and skilled in trading, I myself more comfortable using my own skills, if you are not experienced then keep learning and try