NuclearVision wrotestudying abroad can be nice, if you forget about the accomodation expenses. Specially in big cities, like munich. Unless you have a relative there, like your cousin in germany who already pays for a flat :P
where are you planning to stay?
Berlin is much cheaper than Munich. You can check average living costs on numbeo.com
It's not always accurate, but can give you an idea. Basically Berlin can even be considered cheaper than Beirut.
But accommodation is still a problem because although it's cheap it's very limited and people often have to spend up to one month in a hostel dorm until they find a room to rent. Of course you can always pay more that can also solve the problem. Heck is you're very rich you can just stay in an airbnb or even a hotel. But if you want to experience the cheap Berlin then what I described before is often what happens.
I have lived in berlin, not as a student. It is hard to describe how it is. If you are interested, go for it, just don't have any very high expectation, it might not be a mind-blowing experience :) but of course it depends on many things. People are often friendly and open there, but it's definitely not all rosy and a walk in the park. The system can sometimes feel very alien and the language (and culture, to some extent) difference can make you feel like an outsider even after saying months there.