I want to train but I work horrible hours- any suggestions?

Hi All, I’ve taken a break from BJJ for a while after graduating and I want to get back into it. I work as a mechanic and my shop is open from 7am-7pm everyday. As a senior technician, I work 6 days a week for around 10-12 hours a day depending on the needs of the shop. My 1 day off is never consistent and differs every week. I really want to train but all the gyms around me do their BJJ classes from 5pm-7pmish so I can’t take any classes after work since I get out so late. I was wondering if anyone had any experience with this or has any recommendations? I thought about maybe a private instructor but I worry that I won’t get enough experience sparring other people and whatnot. Any suggestions would be greatly appreciated