But step back a second. Think about something you really love. Did you choose to love it, or did you merely discover you loved it. I remember in 7th grade, someone brought a Trash-80 to show and tell at school, and I was suddenly obsessed. Ever since then, I've learned new programming languages on my own and built stuff. But the key insight is this ... I DID NOT CHOOSE TO LIKE PROGRAMMING. I merely discovered that I happen to love it.
The same is true for millions of other things, from whether or not you like onions, to whether you prefer beaches or mountains, to whether you're introverted or extroverted.
When I was your age, I thought I wanted to build up a little real estate portfolio by converting my personal residences to rentals (aka, "leap-frogging"). The idea felt prestigious and had a feasible chance at leading to wealth. But it turns out, I HATE managing real estate. I just want to focus on my software projects. Owning a rental property is just a way for me to buy myself a bunch of hassle.
So the point is this ... life is not completely about consciously setting tasks, deadlines, and goals for yourself. In fact, much more of life is about listening to your inner self, finding out more about what really makes you tick, and then steering your life more in that direction as you learn. There's an element of excitement to it, because you don't really know exactly where it will lead. Take time to get away from the hustle and bustle and reflect on your life, always asking, "What do I want more of in my life? What do I want less of? What changes can I make that will move me in the right direction?"
To do this, you have to get free of the "hold yourself accountable" mindset. You do not have to meet anyone's standards, you don't have to achieve anything, and you don't have to prove anything. Your life is yours and yours alone. It was given to you, and you are the absolute sovereign over it. If you truly find happiness from surfing the internet 12 hours a day, then you should do it every day of your life, with no guilt whatsoever. The only reason that's not a good idea is that it won't truly make you happy. So you reflect on that, and decide to make a change that takes you in a better direction. Guilt and shame are not in the picture. Neither is time pressure, or needing to "hold yourself accountable". Merely self-acceptance, and leisurely looking for ways to increase the satisfaction and self-actualization you get from life.