I’m sorry for you mate, i can feel your pain (I’m twice operated on my L5S1 disc, and struggled years with the pain). Get a second opinion. in the meantime it’s important to make sure your muscles in that area keep up - Just stay active, don’t do nothing, because that will make it worse long time.

don’t pick up heavy weights (avoid anything above 5kg without that MRI). Make sure you lie good in bed; if the slipped disc is in the lumbar area, sleep either with legs up (just as you would in a chair, 90° angles in hip and knee), or sleep on the side with something between your knees so that your legs stay parallel. if it’s in the neck area, i heard that neck pillows work pretty well. If your bed is very soft, or the mattress is already heavily worn (or the “ladder-thingy” the mattress lies on) that’s not so good for the spine - so if a replacement bed is already on the horizon, maybe prioritize that.

Most slipped discs get better over time - the material that presses on the nerves gets reabsorbed, so you’ve got that going for you.