I guess you are one of those who doesn't have a choice but to just wait.
You bought at a large price indeed but there is no telling when bitcoin will grow again.
Just hold tight and maybe put your seat belt on too because you will never know when it would suddenly gain value again.

Don't rush it or you will just make it worse.
Trust me, you don't want to be that guy which is in the corner and don't know what to do anymore because of losses.