This is a one way of beginner's mistake and this may be the right time for converting your ethereum or altcoin investments into bitcoin. Instead of doing with ethereum or any other altcoins, you should do for the same 70-80% with bitcoin for securing your future. If you are a short term player which is the reason why you are dealing with ethereum, in my opinion, you are again making another blunder mistake. Realize about the true potential of long term planning with bitcoin and plan up for conversion as soon as possible.