If you're a day trader and make $1000 with this trade, I'd say you did very well and probably did the right thing.  Me, if I had enough money to buy a whole bitcoin I'd probably try to buy it under $10k and just hold it.  I think the market is still extremely bullish despite it having cooled off recently.  Bitcoin is trading in a pretty narrow range and keeps bobbing its head above $10k....so I think any chance to buy it below that level is a good opportunity both for a short-term trade and a chance for even greater profit in the longer-term.

But it's up to you how you want to trade.  Obviously you were successful here, so it's not like you did anything wrong.  If I had to give you advice, it would be to try to buy again if and when bitcoin falls to $9000 again.  It might not, but if it did you'd probably have another chance to make at least another grand.

Ah, come on.  All traders are greedy to some extent.  He got lucky with that trade and now he's thinking "What next?".  That's natural.