20-35% for ripple it's gonna be good invest for you. Other you can spread how u see best. BTC and ETH are good allways

Not Ico but I say ripple and hodl it's gonna rocket in next year   

I was wondering that should I buy IOTA. As I have read about it. It's sound too good to be true.

I also like to keep my investments in Bitcoin to support it, but maybe buy some IOTA for its friend. Any suggestions?

No one knows how high bitcoin possibly can go. I've been following Bitcoin long time and back in 2011 also mining with my computer.

First: Never saw it can go this high. Now it has proved its possibility and people are intresting about more and more of it, I feel happy because it can claim or/and show the new way as payment option.

Second: HOLD dont try to make fast profits people. It's going move a lot in next 2-5 years but. You're not losing your investments. HOLDing is best support for cryptocurrency. Hope the Banks also understand it possibilities not only underestimate it, because people are decided to adopt it already.