First, PX was right. Can’t trick your body. Either eat above maint and gain muscle, or eat below maint and desperately try to hold on to the muscle you have. There is no gaining in a deficit. Recomping is just a very frequent cycling of cut and bulk. Assuming it even works for you, it will obviously take much longer.
As to your injuries, I find it humerous that Bulkncut & T3hPwnisher had nearly this exact same exchange in April:
It seems like you’ve made no progress toward healing that injury for nearly a year now, since the injury was 4 months old at the time of that thread. While I do sympathize, you’ve already posted several threads in this subforum about your injuries and ways to get around it and people have offered their ideas already.
I would say you need to talk to a medical doctor ASAP why a year of rehab has not fixed a lower back strain. Also, time to get on a machine-based split, as it seems painfully obvious you are not ready to handle basic compound movements yet.