Everyone complains about school and how they aren't treated fairly while they are there.
But you'll get over it once you leave. -_- It's called "discipline"; they're just trying to get you to do your work. The tech guy already has an education and a job and, unless he is called to do something... technical... what else is he going to do? Sounds like a pretty awesome job to me. =3
Once you leave school and go on to uni you'll have so many more liberties. You can basically do whatever the hell you want, when you want. But you'll miss school, trust me.
Just be glad that you don't have to live on your own or pay bills yet. All you gotta do is learn.