I had chosen careers previously that I truly thought I was going to pursue. Now, everything has changed for me. If you're constantly questioning career and debating if you even want to do it, I think it's worth looking into different fields. For me, I was pre-med/pre-PA for a LONG time. Throughout the process, I kept questioning the length of the programs, the value, and my happiness in them. This is what kind of helped me look into other fields and start looking into what they were like. Now that I've found a field I KNOW I want to work in, I haven't questioned it nearly as much. I definitely questioned the logistics like finances, job outlook, stability, etc but overall, my heart just kept going back to the same field. If you find something you want to do, despite the challenges and inquiries you have, you'll find a way to look past them.
Embracing the world with an open mind can allow you accept these changes as they come and lead you to what you value and what brings you happiness.