I am pretty much in the same boat as you were at your job. I wish I could quit straight up but financially it wouldn't be responsible. Been searching for a job since February but my shitty technical interview skills and lack of experience keep getting me rejected. Lol I am literally willing to "code" HTML at this point.
BTW 140k at 23?? Jeez I am the same age as you and I am getting payed just below 100k and I work in SF.
Keep at it and don't give up! My guess is you're trying to interview at better companies that have difficult hiring processes and that's great. You improve at interviewing as you go along. Make sure you study/practice as many hours per day as you can manage.
I got lucky with that comp package since I had been an intern the previous summer and they wanted me back - gave me a lot of room to negotiate.
BTW 140k at 23?? Jeez I am the same age as you and I am getting payed just below 100k and I work in SF.