I don´t have many btc and i believe in the crypto currency.
Every time i sold ( trying to rebuy cheaper ) because most of the topics where talking about capitulation, China ban, Russia ban, etc, etc, etc, finished loosing.
So i will HOLD, if it gets 10k or more i will sell and if not i will keep them in a pendrive till usb ports be obsolete.
Maybe it´s just i´m a noob trading, but needed to tell my experience.
Don't be hard on yourself, common sense doesn't seem to work in this current bitcoin environment. Patience is the key, just wait for an opportunity rather than forcing one to happen.