If you are very skilled at investing in ICO, then I suggest you engage in trading and ICO. You should not try operations that you are not familiar with, which will make you suffer losses!
Most people are making money in cryptocurrency trading. All other sources in this market are time consuming. Only trading will give you profit on daily basis if you are capable of day trading in a good way. You will never think of any other mean of making money in cryptocurrency market when you have full command on day trading. Dont waste your time in other things. I suggest only trade.