Ask HN: How to improve at programming when you are the best in your company?

Hi hackers,

I have the following question:

How can I improve my code at programming when all my colleagues are very bad at it?

I worked alone on all my projects for more than a decade and I think I need to be in a company where my coworkers are 10000 timer better than me to improve. The problem is that I can't get there because my code doesn't have the quality they expect.

For example, I applied for a Frontend developer position using React recently, and it was a Senior position there but they asked for me to code an exercise and the quality was for mid-level programmer. Bear in mind that I just started web-development in a year and half, coding a fairly complicated SPA in Angular v1 and I just started React Native development in about 4 months ago. ( All the other projects in my career were backend or desktop applications. )

How can I learn to program higher quality code? Do you guys have any ideas on how can I do that?

Thanks and don't be harsh, please :)