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.)
You can do anything you set your mind to when you have vision, determination, and an endless supply of expendable labor.