Ask HN: How can I become a better software engineer?

Every day I come across posts about people doing incredible things: entrepreneurs creating awesome startups, programmers doing great software and people organizing events like meetups.

I would like to do something I'm proud of. As an entrepreneur, I suck at sales and networking (which are the most important things probably) and I am struggling to find a co-founder that complements me. As a programmer, I work as a web developer in a small startup. I like to read a lot and I try to keep learning new things every day, but I cannot find a place to put in practice everything I know. I would love to work on more challenging projects but sadly I live in Argentina where tech companies are practically non-existent.

It makes me a little sad to know that in spite of everything I know I'm not doing anything that makes me proud.

So, what can I do to improve my self?