Finally Amethyst (https://github.com/ianyh/Amethyst) is still a lil buggy but so nice to have. If you want to go the 'more OS X route' check out BetterTouchTool instead.
Networking definitely has real value. I see two main advantages. One, some of the people you meet can help you on the spot (i.e. they fill a need you presently had). Second, adding smart, talented people to your network raises the chance that when you next need someone to fill a role, or someone asks you if you do, you not only have someone, but you have someone good.
However, don't get carried away. The scene is huge and not every event is worth going to. In addition, going to events is only a compliment to the real work.
I would advise continuing to work on skills using the insane amount of online resources available. While also working to build up an open-source profile of side-projects. Side projects not only show that you truly do enjoy developing, but they also provide a great tangible means for exemplifying your skills. You have a great jump on learning these skills but because of your age you will need tangible proof that you have real skill. Because of this I think open-source side projects are a perfect fit. They're fun, hone your skills, and prove you can create (and maintain, document, etc.) a software system.
Oh and I can't agree enough with all the people saying savor the time. I can remember countless days where I was 'bored' stiff all day, while nowadays I find myself dreaming of being able to not have to sleep daily so I could fit in even more hours for projects, both personal and professional.
I firmly believe that as you age your perceived notion of time passing only accelerates.
Currently a Founder, Software Engineer, & Web Developer @ Antumbra (https://antumbra.io). Seeking internship or Co-Op over the summer and then a Co-Op position for next fall.
There's a project called Saulify being worked on over at Assembly which re-formats articles for a cleaner, responsive design.
I'd be interested in forking it or a similar project to better adapt it to this use case.
On a related note a friend of mine is the co-founder of a company aiming to fix this very problem. Their approach is portal software that allows users to interact with common services through a more simplistic, and better age-targeted service. Check it out here[1].
There are two plugins they currently offer. One blocks sites from tracking you, while the other allows you to search using your favorite search engine with added security (no ip logging, more anonymity, etc.).
For more information checkout the Github project page for each project below.