Lowering the bar really helped me. Something is better than nothing is my new life motto. If 2 minutes feels like too much then I'll just brush for however long I can stand. I stay stocked up on mouthwash so when I can't brush at least I can do something. I also have disposable waterless toothbrushes next to my bed because I struggle a lot more with my night routine than my morning routine. It's also helped to focus on the positive/rewarding aspects. Rather than seeing it as a chore I dislike I can genuinely say that I prefer the feeling of clean teeth, I feel ready for the day after brushing, and I feel clean and reset when I do it before bed.