That's a question I'm sure many of us have asked ourselves over the years. What if I made a different choice? What if I took another path or the other fork in the road? What if I settled on that other option?
Looking back, there would be two, maybe three things I'd do differently if I could. But I also know that asking What if is useless. You made your choice. You can't change it. Thinking about a different scenario doesn't make your current situation any better.
You can either accept and embrace where you are and what you do, or you can make a change. The only way the past can help you is to remind you about what making a different choice is like.