Is it really a big mistake to sell portion of your bitcoin and then rebuy back when the price has dip?
in my opinion, it’s not a mistake. by doing this, you are increasing your amount of bitcoin. if you know when a dip might happen, you can sell some or half of your bitcoin before that. but if you sell without knowing and it leads to a loss, then it’s your loss. everyone wants to increase their bitcoin holdings because bitcoin is digital gold. if you can save it now, you won’t need to look for an income source in the future. if you have any early warning signs, then doing this is a good choice.
Selling Bitcoin when the price is rising and buying it back when the price is falling is a bad idea and a short term trader. You don't know when the price will fall or if it will happen at all. If you are already buying and it has not yet gone through a cycle, then selling Bitcoin will not be the right decision for you. You should always think long term about Bitcoin. When you think short term you will be tempted to sell again and again and eventually become a losing trader. If you have already been accumulation Bitcoin for two or three years, unless you are very rich, it has not yet reached a good level. In this situation, the decision to sell Bitcoin will never work out well for you because there is a lot of doubt whether you will see the price fall again. So I think no investor should sell Bitcoin at such a level. Hold Bitcoin.