Three observations, you were adding to a losing position, kiss of death, where as you should have reveresd course and bought puts, you are trying to make back the cash on the same instrament - BTU, and you are becoming emotionally involved in the game.
You may wish to consider reading reminecences of a stock operator and how to make money in stocks three times each.
I've never mastered the cut the losses at 3-5% and go short thing, wish that I had, many times. I just cut the losses.
As jessie livermore said - there is only one side of the tape, the right one.
Good luck with it, not that luck has anything to do with it.