I also had lost confidence with bitcoin some time ago so that makes most bitcoin I sell to fiat, but after the price looks stable at $ 9000 then this makes me re-optimistic with bitcoin.
Well that lack of confidence may cost you a life changing chance of really making big in the future. You can't be in and out if you feel like it. I think understanding crypto means that you have to have trust and crypto millionnaires have a lot of that.