>>76261149I fucked up my back last fall exactly with a linear leg press, thankfully it wasn't a herniated disc and just muscle damage
still took 2 months to recover
my advice: stop doing leg press and standard squats, it's not easy to get your form right and you can do micro-damage to the back that adds up over time
hyperextensions are a must and if you have to do deads, do stiff-legged deadlifts, and remember to pull with your back, not your hips
if you must do a compound leg exercise squat variation, look for back-support versions for pendulum squats
good luck with the recovery, and don't neglect your core next time