It's very difficult to buy back after selling. If you sell now, you'll see the price rise slightly in a few days. When you decide to buy, the price will start to fall again, and as a result, you'll be the one losing money.
If you're considering selling now, I recommend not monitoring the price of Bitcoin for too long. You'll find that it rises after you sell, and you won't make a profit.
You can buy it back again in a few months, or even a year or two, and you could make a substantial profit doing so

Timing the market is very difficult and usually by wrong timing, we sold not at peaks but later
wit Essexwitnessed higher highs. In early days after selling, we hesitated to buy back after price rises a bit but after waiting for some long time and wtmitnessing price soars a lot, we can not stay outside and decide to rejoin the market.
It is when we stuck around peaks and later repeat a classic mistake, buy high with FOMO and sell low with panic.
Buying back but at higher prices than where we sold is not worst, the worst is later we panic sell at lower price and surely with loss.