It could be that the purpose of your life is only to serve as a warning to others.
Not every life can be a success, just like not every vessel can be seaworthy. But there’s no shame in being one spectacular shipwreck. (Actually, there is. But we’re not going to kick you while you’re down, Edmund Fitzgerald.)
The pain you feel today will be the strength you feel tomorrow. Or you could die from it. It's hard to know with these things sometimes.