I would sell all my bitcoin if the price is rise to get profit then if the price fall down I would buy bitcoin, that is my plan to do investment in bitcoin.
It is a common sentence, i was also reply same like you.
Actually my thinking is that, if halving is not coming in this year, so i never and ever sell my bitcoins less than 5 years, even the bitcoins price would be cross $1000, because i have a plan to save it when ever i can save it.
But i want to utilize the halving first time, and i also want to see what we can do in halving.