"What if I made the wrong decision?"
Too often, I see people blame themselves for making a "bad" decision. They chose a certain career path, and while it seemed fine in the beginning, now they're miserable. They wonder whether they can trust themselves to make a good decision now, given the "mistake" they made back then.
The thing is, it's entirely possible that they made a good decision back then. That they knew what they wanted, and made a choice that aligned with that. And, it's totally possible that what they want and need now is completely different. In fact, not only is it possible, it's likely.
At different points in our life, we value different things. While we once longed for freedom and exploration, we may now need stability and consistency. At one point we may value exposure to a lot of different things, then at another point focus on deepening expertise in a single area. When we have the energy and time, we may pursue advancement no matter the cost, but later prioritize efficiency to make time for other important things in life.
Just because the decision you made in the past no longer suits you does not mean you made a "wrong" decision. It simply means it's time to make a *new* one.