Greetings @Phoenix_Fire,
I’m so sorry to hear you’re dealing with burnout 
It’s not fun, and it hits all of us at one point or another. I think that burnout manifests differently for different people, so my best advice to you is to keep trying different things- luckily, I can see you’ve already got some wonderful advice from the coven! 
My usual go-to for burnout is with Self Love work to get some rest and have a good refresh 
Others have already shared some fantastic resources about this, though, so I’ll skip right to the other kind of spellwork I’d recommend, which is Motivational Spellwork.
Here’s a spell you might try:
Motivation and Creativity Come My Way Spell
Take it easy and be kind to yourself- burnout hits all of us at some point, but it really is just a bump in the road of the journey. Take good care of yourself and be well, Danni!
Many blessings!