feeling down about the process

I know its just excuses but do to my work schedule and my lower back issues i'm definitely behind on running. I basically can't run/jog everyday because my back just takes a repeated pounding from the impacts of running. I'm scarred I'll re herniate one of the discs in my lumbar spine which i had surgery to fix last March (2023). Normal class activities don't really bother me but the jogging does. I also am not strong enough to lift 245lbs to do a pull up no matter how hard i try. If i were 180lbs then i probably could do it. I dunno i don't want to let Masters Foster and Knight down. Hopefully once school starts I can force myself to jog 2-3 miles a day after my son goes to school and before i go to bed. I mean I'm at 15min a mile basically so 45min shouldn't be that bad before i go to bed for the morning.