I'd like to go to University but I'm still in a phase "I don't know what to do with my life" + I still have my last year of high school and now I'm the most confused people ever
If you're not sure, then work. Get a job that'll keep you going until you know for sure what you want to do. Work in a bar, a cafe, an office... anywhere. There's no rush! They put too much pressure on you to decide your entire future at such a young age, when in reality you can spend a couple of years trying new things and discovering which path is really right for you.
Definitely DO NOT pick a uni degree just because you enjoy the subject at school. Pick something that'll get you a job, because I can't tell you how many of my friends are graduating with useless degrees because school made them think that university was their only option. Make sure you're using your degree to get somewhere.