You are not defined by your career (or your job). You're young and just getting started. If this path doesn't pan out then look for the next thing. But keep

You are not defined by your career (or your job). You're young and just getting started. If this path doesn't pan out then look for the next thing. But keep your chin up! You sound plenty smart and self reflection is an uncommon virtue these days. And my experience (now 26 years of software development) hard work beats smarts 95% of the time - so keep working hard.