If you want to hold on for a long time, then I suggest you invest in several ICO projects, so long-term holding could have a surprising return. I recommend you to join these ICO.
wepower
Experty. IO
RSK
TraDove
Special thanks to you. I will research it. Before this time, i play ICO but i lost a little money. I dont believe in ICO until this time.
Also I am following one project i believe has a lot of potential and is in the ICO stage if you're looking to diversify your investment have a look at ethernity cloud
I like the team as they are all Romanian, and during the presale they seemed to have a lot of support.
Have a look and do your own research
(ANN forum link -
https://bitcointalk.org/index.php?topic=5344159.msg57260045#msg57260045)