You can start over as many times as you need.
There's a myth that you only get one or two fresh starts. After that, you're stuck with whoever you've become.
It isn't true. You can begin again at 25, 45, 70. After a breakup, a layoff, a bad year, a bad Tuesday. The crumpled pages don't cancel the blank one waiting on the desk.
Starting over isn't admitting defeat. It's refusing to let one chapter decide the whole book.
Sharpen the pencil. Turn to a clean page. Begin again, as many times as it takes.