[dccoolgai]

I'm in my mid thirties and I know that feel. Got turned down in round 2 of AWS last year after the interviewer put a full court press on me for not knowing something kind of arcane (I think it was knowing the implementation of FIPS 140 or something like that). I was honest and said I had no idea and only a passing familiarity with it, but the guy was just like a dog with a bone. That's the way it is sometimes - you get a bad interviewer and the game is up. You shouldn't couple your self-worth or even your worth as a developer/technologist with the outcome of any interview process - especially from those kinds of places.

It will feel like crap for a while, but it's a numbers game - keep turning them over and one or two will come up your way. Don't know what city you are in, but tech meetups are a great place to pick up leads for jobs, usually. This might sound weird - but elections are happening now (assuming you are U.S.) - Go volunteer at a campaign pretty hard for the next week and a half. You might meet some people who can help you out in the long run.

At your age, it's often better to cut your teeth somewhere where you can jump in and get more responsibility off the bat anyway.