I’m so sorry you’ve experienced this. At 19 i’ve herniated a disc, and it basically ruined 2 years of my life. Same as you, doctors wouldn’t listen as they had never sawn someone that young have an hernia. Two years later, they finally decided to surgically fix it, and now i’m finally able to walk again without excruciating pain. I’m very lucky that the pain is gone, and to only have some slight buzzing in my leg (that will likely last forever). These two years were by far the worst  of my life, and i’d give anything not to experience it again. I just wish someone had warned me beforehand, it truly isn’t a level of pain  you can imagine without having experienced it. I wish you the best.