If you start with the understanding that back tweaks almost always represent a neuromuscular protective mechanism, often unconnected to a specific structural injury, it will inform how you rehab them. Basically, you have to recondition your body to trust that the painful ranges of motion and movements are actually safe. This includes things like getting out of bed, walking, and training. Lift as heavy as pain allows, wear the belt from the first warmup set on and focus on getting really tight for the liftoff and walkout on squats. You might surprise yourself. The last tweak I had, and by far the most uncomfortable I have experienced, happened while deadlifting a couple years ago. I actually ended up doing my scheduled squat work sets two days later and was basically back to 100% within a week. You just have to force yourself to keep moving through the inhibited range of motion, focusing on stability. It's not a muscle belly tear, so don't treat it like one.