New system mixed with old

I ignored one of my trading systems for several months. Recently I, foolishly, restarted it with a totally different trading model. I should have just started a “new system”, but I didn’t. It is doing well so far (14% in 3 weeks) but it is mixed with the original (different) system’s performance. Any ideas on how to undo my blunder?

thanks, Rick

I think you’re going to have to live with it.