Isolation is just one of the reasons I decided to fly back. I had the intention of staying here forever and I can already see that I won't do that, also even though I earn good for Brazilian standards, I earn terribly to German standards, work my ass off at a work that sucks and in which I suck at and won't even be able to save that much money for what it seems since my father is a Harzer and the big house and car need money.
I earned something like 950 euros and 200 are already gone in like 2 days.
You're an intelligent guy, as far as I can judge. You could become an apprentice for a trade, in tech or for some advanced factory job in a big company. Construction etc. are booming.
Your father makes you pay for your stay? How did he do it before you were here? Does he has to pay extra because the housing subsidy from the HartzIV ARGE office isn't enough, because he rents a to big place? Or is it his own house and he has to pay taxes/debt and for repairs?
I mean, if you go he'll has to pay it all alone again. Maybe you should talk with him to lower your portion a bit at least.
200€ two days wtf? This is for the rent etc., right?
Because if you eat out lot... Culture in Germany is different. You don't go to restaurants that often. I am half Greek. In the holidays we go out there every second day. But that's not what you do in Germany. You should try to orientate yourself on the specific Hartz IV budgets. Then insurance + rent. Dunno.
http://hartziv.info/ratgeber/hartz-iv-regelbedarf
900€ is per month, right?
You should be okay, but I guess it's hard for you to adapt to German prices and spending culture and how to save money / find cheap hobbies and the right people.
I don't want to sway you. Just help you to sort things out / get a clearer picture. Brazil is a tough ground, right?
I'd be interested into more details like blobsIIcel as well btw.