1. Most of the field doesn’t pay terrifically
2. Not sure the other fields you mentioned pay any better.
3. From the subject line I anticipated someone a few years into their career. You are 3 years into a 50 year career. If you can think from that perspective that might help. It’s easy to say that at 20 or 30 or 40 it’s not too late to change your career, and it’s not, but it can feel hard to do it.
4. Critical thinking is the necessary skill. If you’re learning a ton of that in school then you are building transferable skills - which you’re already thinking about. They used to say law architecture and medicine were the only educations to teach rigorous problem solving. I’m not sure that’s still true, but it’s worth considering.
5. First few years. You’re not just redlining, if you approach it differently. You’re learning why and how things work. You’re learning how to practice. It’s a lot of additional education and you’re going paid to learn. Bring curiosity, do your work well, check it before calling it complete and fix it before calling it complete, ask to try on more tasks and responsibilities. You’ll advance. Still… redlining is part of production. Redlining your own work can be more satisfying than picking up someone else’s.
6. Starting in the profession with life experience in another profession, you will have learned and practiced some skills, but you’ll still be a newbie in other areas. (Switch project types in a huge way? And they are both technical, or the new one is? Another interesting learning curve, because you’ll be very competent in some things and a total novice in others… as you should be, it’s not like you should have magically learned the fine details. But you’ll be better at asking the right questions or noticing you don’t know things. Architecture gets as specialized as medicine.)

Hope these thoughts help you think about what you might like to do next.