I will invest both. Investing in one type of project will be risky. To secure and keep your money well, I will invest a portion in projects with high returns, and part will invest in projects safe .
Much better way splitting as you are taking the risk but wiser to place some part of your money into some project that can be much safer, ico can give high returned if successful but in this type of market you also need considering the tempo, you should place some portions into quality and good project too.