Lower back pain at the age of 19

[Armand]

Workout bench on Amazon for around 100 or a pull-up bar helps with posture, be mindful when sitting in a chair how you're positioned as well as when you're asleep try not to curl into fetal or lay on your side. Your spine might have curvatures that cause pain but if you do physical workouts like in physical therapy, it'll help immensely.

[Trayambakam]

For immediate pain relief, this works great https://www.youtube.com/watch?v=4BOTvaRaDjI&t=470s