Low back pain

I’m a new LMT and have been massaging for about a month. I started easing into it by only having about 8-10 clients a week for the first couple of weeks. I’m on my second week of 14-16 1 hour sessions, and my low back is FEELIN IT. I always do strength training, calisthenics or cardio before a shift, and an easy yoga session after. I’ve never had low back pain until last weekend when I also got a pretty intense cupping/deep tissue massage, and I immediately had it after the session. Idk if it triggered something that already existed, or just started a new thing. Howeverrrr, I do know I need to put a lot more focus on my body mechanics because I do find myself getting pretty zeroed in on the work I’m doing instead. How did you find a balance when you first started of being present in your work while also keeping your own body in mind?