I tell myself how much worse things will get if I don't do those things.
I try to take some of the pressure off. There's a certain amount of neglect I can live with. I'm ok with personal hygienne but my environment is messy and awful a lot of the time. But, it's only me who has to put up with it. But, I tend to have must-do's each day which I try to achieve as a bare minimum.
Plus, I'm constantly trying to distract myself with music, YouTube, Podcasts, films on in the background.
When I have to tidy and clean the place or something else I really don't want to do, I try to bribe myself. I do little amounts and reward myself by coming on here or drinking some soda in between.