Like you I’ve been developing for over a decade. I work with a lot of similar people. I still encounter people who hardcode this or repeat that or whatever. Never run the linter or used git poorly. I don’t mind at all. The value good developers bring to the table is the ability to learn, solve problems, and collaborate with me.

You can get better at writing code, but many people can’t figure out the other things. That’s when it’ll never work.

You recognize your shortcomings so you can work on them. Most people don’t, in my experience, and developing software with them is a struggle at best and a dead end at the worst. You’re probably better off than you realize.

I’ve also felt like you do at times. It’s normal to feel down on yourself, especially if you’re exposed to very talented or skilled people. But it’s all fine. You can catch up, and you probably bring something to the team that’s still very valuable.