if you want to invest, you must calculate the risk factors. for the moment it would be wrong to give advice. the market is rising too fast.
Also, read more about of their ICO, and always keep updated, because in this way, you could easily know if they will be a scam or going to be successful. The first thing that I'm always doing before investing to their ICO is I'm checking their background, and reading about the others feedback to them, the most important is the information about the Dev.
Investing on ICO is not that easy, since we are talking a huge amount of money as a capital that we are going to use on investing, but it is going to be worth it if the ICO where you have joined is successful.