I hate my job and it's such a source of stress, but it's better than no job at all. How can I make it more fun and less stressful?

I would make a list of goals to achieve for each day (or week) to keep myself motivated. A job might not be exactly how you want it to be... But, you can always do even the littlest of tasks with care and curiosity. I also motivate myself by reading on what I don't know, and just focusing on improving myself.

Change your perspective. Tell yourself it will be a good day, tell yourself you are looking forward to going to work. Tell yourself work will be fun, or make it fun. Be positive about it. I struggled with things that I hated, such as jobs and school and homework and it caused me a lot of stress, more stress because I hated it. I changed my perspective and it started getting better bit by bit. I wasn't as stressed because I didn't dread it with hate for it. Instead the stress was simply from the efforts put into it :)

Find yourself after going home from that stressful job. Do something for yourself. Indulge yourself but not too much, just to make yourself realize that you deserve to have a time for yourself just as the you need the job.

Try to be positive, decide everyday before work what kind of a day you want to have and envision what that looks like!

Set goals for yourself and everytime you have achieved them reward yourself. Meantime look for something you like and wanna do. No harm looking since you have a job already. When you find something that you wanna do. Leave and do it.