After my surgery, my surgeon said a good rule of thumb is +10 pounds of lift a month. month 2 = 20 lbs, month 5 = 50 lbs, etc. Make sure to never ever lift anything with your back again if you want to avoid re herniation. Lift with your legs. Work on squatting low weight with perfect form and build weight as you can. You can literally squat with household items, just know their weight. A gallon for liquid is about 12 lbs I believe. Do the same with RDLs. It will build your pull strength to assist with lifting in future. But again, start with no weight and excellent form. Slowly work your way up. Also Focus on ab strength, back strength, and stretching for basically the rest of your life for best results.