Interpersonal skills vs. coding chops

I feel like I'm caught in a catch-22 situation - if I spend all my time coding, then my desire to interact with others (and others' desires to interact with me) decreases - because I become boring due to spending time only in my own skill development. This will have negative consequences - I miss out on opportunities cause nobody is an island. I also have emotional anxiety which impacts my productivity. But if I spend time trying to socialize/trying to make plans/have a few easy-going days, then my skill stagnates and I feel that I'm losing sight of my endgoal (to be a better programmer). Then there will be no use of my network because I won't have the capacity to create anything significant.

To clarify more, my drive to be a better programmer is because I want to have enough skill to create a hugely valuable and profitable startup. I think I've got enough skills to get a decent-good programming job(so I don't need to code 8-10 hours a day for just that) BUT obviously I want to exceed expectations, and win at life. My definition of winning at life is make genuine friendships, make a boatload of money, and not need to work in a conventional company/career.

So, all the above means I want to code 24x7 to be as technically proficient as possible. But spending all that time coding would leave me a boring and lonely guy I think. How do people balance their skill with their time? How do I become smarter and more efficient than I am now, while also becoming more of a fun and attractive personality to hang around with?

Your skills don't stagnate because you have the weekends off coding. No one is a 100% efficient human being [the word for that is robot].

My advice would be to set a baseline of working hard during work hours, but also develop habits and routines outside of work hours where you actually attend to the other things you want to do (exercise, hobbies, and socialising).

With that basic balance and limits in place, then you add a little bit more of the thing you want to excel at (in your case coding). By a little bit, I mean maybe an extra hour or two per day, if you have the time and energy.

Your big achievements will probably come from chipping away a little bit each day, and making whatever you work on a little bit better each time you work on it. Not from busting a gut when you are 23 and burning out by 25 [ignore my assumptions about your specific age].

PS, working for a conventional company can be very satisfying, you might just need to try a few different ones until something clicks into place.