Sell what you have gained in Bitcoin after getting some profits, and know you achieved something in your Bitcoin investment. When people are talking about the benefits they achieve in Bitcoin, you can say yours too.
Know your investments timeframe, if you're investing for 6 months then that should be your target and not selling because you're scared of the market crashing or the price falling below your buy in price. I can't advice anyone against taking profits because you can't go wrong with selling in profit. What I can advice is to prioritize investing for a longer duration and not putting hopes on short term gains. The primary goals should be selling in profits so that's the focus and not necessary chasing every pump happening as an opportunity to sell. Hodlers are the biggest winners as Bitcoin investors so all investors need to know this and make decisions that's best for them based on this knowledge.