Buldge disk l4 l5. Seems it end of life?

Pain in thigh since 1 yrs.. Recently done mri found buldge at l4 l5 causing mild spinal stenosis.. Doctor gave cortisone 125 mg one shot im For inflammation and pregabalim for pain for one of nerve.. Had excess worry after diagnosis thinking future complication of working ability, quality of life and married life as came to know it also causes erectile dysfunction.. Went to visit doc again n he assure that buldge will heal with time n won't need for surgery.. But still worried how long it can b checked from progress of disease?? Can physiotherapist push the buldge back?? What should I do regular to maintain my quality of life for maximum?? Is there any alternative solution to cure this?? Since my age s younger n unmarried I m so much worried how it can effect my future life n how to manage it?? If it's cant be cured than what's the meaning of life now?? Doesn't it seems it end of life??