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.