What is human freedom?

I think you can go about this two ways. One is freedom from your own mind, as David Banach says, "Each of us is trapped within our own mind". We can achieve this some how, but I don't know how. Jeez I'm only 15. Maybe human freedom is being free of other peoples decisions, and being able to control yourself. Existentialism is a little confusing for me, all this "What's it all mean?" stuff, because I believe it varies so every one asking the same question and getting different answers feels odd. Although I would love for all of us to be able to relate and come to the same conclusions, I just feel like that won't work. We are trapped within our own minds after all. Victems to our ever linger questions, Where am I going? What should I do? What if? Where did those keys GO??

So difficult, I know. But it sucks. A lot of stuff sucks. I just wanna know how to make all that suck less.