So you bought high and sold low? That's the literal opposite of what you are supposed to do. Also Tron is plagiarised vaporware.
Just hold it and do nothing is not an option
It absolutely is an option, and given your history of terrible decisions, I would suggest it is the best option until you learn about crypto and learn some patience.
Yeah wait until you will be clear that you have enough knowledge about bitcoin selling time, if you are conform about it only then sell it, but the first option that you should use is the patience for sure, if you will hold your bitcoin for long time then it will increase your profit and you will not get lose, patience is the key of success in crypto currency, if in history you had some good or bad experience then you should learn from it for your better future experience.