Well, your post is another good reminder about the golden rule of BTC investing -- Never buy at the top.If you're hodler and you actually can afford to lose whatever you have then just continue to hodl otherwise, you may think about selling.
The general ideology of hodl is about long term hodlin and I'm sure that BTC will be even bigger in a year (or more) so long term hodlers won't realy lose their money. Anyway selling now and then buying at bigger price will still increase your btc amount.
"Never buy at the top" is hard to operate. If I would not have bought BTC at the time where it was 5k, which was a ATH at the time and just waited, then I would have missed a great opportunity.
It is to me more whether you feel and expect the BTC price to go higher. At the end of the day, if in a year from now BTC is worth 50k, whether you bought it 5k or 15k does not make such a big difference.