I agree, when the price of bitcoin rises we can take advantage to sell some of our bitcoin, but we have to do it according to the plan we have targeted. because everyone has their own target, my target is to start selling bitcoin when the price of bitcoin starts to touch $80K, not now.
I have sold some of my Bitcoin today. Bitcoin reaches $$71.9xx today, it is quite high increase. There should be dump after the pump, now you can see the Bitcoin price dropped below $70.000 again. Although we have a target to take profits, I think it is no problem to take the advantage from the current trend in Bitcoin. If we get profits, we can add the number of our Bitcoin. However, it is up to you if you only wants to sell when the price reaches $80k at least.
When the market rises we should stop buying BTC but we should set a strategy at what price we will sell it later, for example, your target is 80k$ and will sell some of the BTC you have.
Normal people must understand to stop buying when they see the Bitcoin price rising. I never buy Bitcoin when it is already above $70.000. I only buy Bitcoin when it can drop below $65k, it is quite safe price to buy Bitcoin for holding a short term. But if the price is above $70k, it is better to sell than buying.