I think the best thing you have to do is to wait. Don't panic because as we are into this cryptocurrency world we already know the risk we have to take care of. Control your emotion mate don't do stupid things because it might lead you to lose some of your capital just wait for a good timing. If you believe that it will be bouncing back in the next days, months or years then just leave it there just always remember that patience is virtue. It had happened to me once but came a good timing where price go up and I sold all my coins right away because I know it will be bleeding again in the next days due to hard fork and I actually did the right decission.