My last trim was on Christmas Day last year. The same thing that made me go natural in the first place (seeing my then 5 year old niece with flat ironed hair almost 8 years ago - never knew natural hair could look so good!) , was the same thing that made me cut around 1.5-2 inches off on a whim(after seeing my now 13-year-old niece go from hip bone length to bsl hair because of scraggly ends).
I'm so glad I did! My ends are still in good condition, but I've been doing a lot of search and destroy sessions, deep conditioning, and moisturizing/sealing every week.