No choice but to accept the fact that you are at loss. However, until you literally sell it, it's just a paper loss.

Since you don't have any plans for now on selling it (which I will assume) maybe come back later on and totally forget your portfolio. Times like this already happened in crypto many times and what you need to do is to just try not to stress.

Things like that are really stressful to see but no one can help yourself but you.