in my analysis I can see that the price trend is to go back down to its support line which is approximately 6k and then it will go up to a first level, touching the 11k. I would expect it to go down to the support line to buy
i think the best time to buy bitcoin is when bitcoin price is dump and that was the perfect time if you really want to have a bigger profit so i guess you should learn also to trade for you to be able to know when to buy and when to sell,