well if you ask me, you made a very big mistake buying in ethereum right now. because the price has already gone up and there is always so much you can pump an altcoin before it collapses on you. and buying into a pump is never a good idea.

what you need to do is to invest in other altcoins that have not yet gone up because they are going to be profitable not something that is already pumped.
and as far as ethereum goes, selling now is the best option. but if you are a risk taker then be extra careful and have some sop losses if you don't want to lose a lot of money.