Hello and welcome. I would STRONGLY suggest you find out how many courses already exist on Udemy on hair braiding to see what your competition is. So few new instructors do this. They then spend months creating a course and wonder why they are not getting any sales when 100+ courses already exist on the subject.
By the way, I did a Udemy search on 'Hair Braiding' and got 300+ results back. So, somehow you would need to figure out how your course would stand out among 300+ competitors.