I definitely get this!
With personal projects, sometimes restarting (assuming it's not too big) has helped me, provided the project isn't too big. Otherwise, I just move on to the next one; sometimes I come back to stuff but I try not to stress if I don't. It's all good practice at all, and unfinished work is still more than no work!
I also try to have multiple things on the go at once, though that's more with uni than art/hobbies. That way, if I feel myself getting sick of something I can work on other stuff until I'm ready to face it again.
In terms of a feeling of dread... it's probably not the same but I had a period of about 2 years where I straight up couldn't draw. I'd sit down at my tablet or with a sketchbook and just... nothing. Even if I'd been thinking about drawing something all day, as soon as I tried something in my brain just said "no!!"
...I think that was burnout? Lol
I think maybe seeing if you can prevent it by figuring out the source of the dread might help you? Like if you're worrying about not creating something the "wrong" way, or if you're working on a big project and that's looming over you. It's something I struggled with, and getting out of that headspace really helped me, though it takes a lot of work. I think just focus on making the stuff that makes you happy, and don't feel afraid to take a break from it if you need to.