Yep, I think you should and it may not take as long as you think. It gets easier the longer you do it. If you keep refeeding and coming back to LT it's really hard and I've seen so many people struggle getting back to TFR after cheating or having a break and then never come back. You know your character better than I, but personally I'd want to get it over and done with, do a proper refeed and learn to maintain well, so you don't have to do this all again unless absolutely necessary x x x