If I’m a self employed actor and taking college classes in theater and film; can I write it off?

You have not asked a question.  What is your tax question about that?

Q. Can I write it off?

A. Yes. The general rule is: Educational expenses to improve your current job skills are deductible. But learning a new job is not.

Continuing Education. Regular W-2 employees are no longer (since 2018) allowed to deduct job expenses, including education. If you're self employed, you can deduct the cost, as a business expense, on schedule C (enter as other expenses).

If the courses were taken at a recognized college or vocational school (educational institutions eligible to participate in the student aid programs administered by the Department of Education),  you can take either the Lifetime Learning Credit or the Tuition & fees deduction (but not the American Opportunity credits), instead of a business expense deduction. 

You can also deduct the mileage if you go directly from your work site to the school. You cannot deduct the mileage from school back to home, unless the schooling is considered temporary (expected to last less than 1 year and actually does last less than 1 year).