Once you learn a trade you once loved, it's hard to walk away. There's good coin to be had in the arborist world. I've decided some time ago, I'm sticking with it. My 2nd trade doesn't float my boat anymore. It barely ever did. There was just really good money in roofing but not worth the competition or the daily grind. I can find peace in most trees depending on the crew. When I turned wrenches, I loved working on drag cars. Racing has and always will be in my blood. Working on the common, greasy, rusty, trash of a daily driver.....not so much.
An old timer told me some time ago, "There'll always be tree work.'' He's right.
Levi, take a break, give your head time to clear. Talk to that customer and reschedule. Just explain you feel burned out and need a couple days......you'll want that coin sooner than later.
If I recall, you've given this up before but been drawn back into it? A lot of companies I know, owner operator included, take weekend camping trips, 3 day vaycays, what ever it takes to keep that piece of mind.
You, be you.