Change all your bitcoin to tether.. And you will be alright.
Isn't Tether an Altcoin too?!
EDIT: reading about it, yeah.. it's a good idea, I did something similar with my BTC, leaving only some of the money in case it "mooned" which is very unlikely.
I think your post will be much better if you explain why choose tether, someone who only knows it is an altcoin.. might not understand.
Yes, it is one. Actually the good thing about tether is that is is not volatile so one is protected from price swings. Check it out