30 minutes is a lot longer walking outside than most people are doing. I can't imagine ever going back to a point where I didn't go outside for a walk every single day.
My old job was with United States Postal Service. The mail people. I wasn't a mailman but did all sorts of other things, including customer service. I actually did a bunch of posts about everything that happened to push me to finally quit back in November, here is the link if you are interested in reading: https://peakd.com/hive-167922/@daltono/it-is-official-i-have-resigned-from-my-shitty-career-of-9-years.
Dude, I read it all and I congratulate you for quitting this job and going towards your dreams. You have already overcome the most difficult times, which were the first times. Actually, I have been wondering about this for a long time and I am happy to learn it now. I hope you continue to get more than enough for the choice you have made.
I just re-read it as well and I feel even more confident in my decision now than I did back then. Some would say I took a big risk quitting that job, but I honestly think the real risk was going in that place every day... eventually, I feel like it would have brought me to the point of just giving up on trying to enjoy my life. That will NEVER happen now!
That's it! You know what you want and you do it. Congratulations, man. I think you can achieve anything you want 👑.
I think the same for you.