[hipsters_unite]

Don't freak out too much. Make a list of the minimum list of skills you need to do a non-trivial project solo, and learn those. Once you've got that base you can expand out, and if you've got a few different things to build on it should make that easier.

When I started, it was PHP/JS, but after a while quickly changed that to Ruby/Rails, Python, JS/CSS/HTML and design (can't do a solo project without knowing some colour theory, typography basics etc). With only six things to tick off, it was less of a daunting task and I felt like I was making progress.

I've added to that list both at work and around work since, but as somebody above noted, you can get burned out from coding all the time - sometimes you need to recharge and wait for the fire to come back.

The one thing I do know, is that if you have a passion for the craft and nurture it, you will be able to find a balance :)