I keep a journal or record of my activities that I want to improve in and review it every week. I hold myself accountable to make entries in the journal everyday even if I have to put down zero activity. I use it for my target languages, exercise, and food. When I see that I have been active it is motivating to continue to be active. I find I procrastinate the most when work takes up more time. I really get upset at myself when I have to put down zero activity, so I will at the very least run 1.5km a day and listen to youtube videos in my target language, even if it is only for 15 minutes. For the most part, I fight through it.