Well personally I have only one coin electronium (ETN) i am just holding this and spend my all money in it. I have also participated in 2 ICO's lets see what i will get in return, I am not good to choose the right coin / ICO's for investment, just one friend told me about those ICO's and i invest my all funds.
it's a bad idea to invest all the money in one project. You must stick to money management. Read books about investing