I second the showering!! I literally cannot do anything productive with greasy hair lol. But other tips would be getting out of the house or switching up your pattern. I often find its hard to view everything in the same bland grey if you see something you're not used to.

Another one would be music. Find a few songs that make you feel really great and have that on repeat. Don't listen to anything else and make that your charge up music. The more you get done during it, the better it'll work when you use the technique later on!

I also second setting small goals for yourself. Okay so all the dishes is a lot of dishes. Clean 5. Or spend on 10 mins working on a project you said you were going to. Generally it's the initial inertia that stops people so if you push through it you may surprise yourself and finish all the dishes!!

I also try to make myself uncomfortable. If I haven't done anything in a while, I'll make plans with some friends or family or by myself. That means I have to look presentable to go outside and if I'm outside I might as well get some stuff done since I've got grownup pants on lol.

And the most important last thing don't beat yourself up over a bad day if you can help it. Just acknowledge it was a bad day and rest up early and back at it tomorrow. Sometimes it takes a ridiculously long time to get out of a funk but it'll get there!

Best of luck!