Main Fiipino Dialect

English obviously. And Greek.

I can speak English, French and a bit of German.

Dutch and English (it could be better though).
I'm having German, French and Greek classes on school but it's so hard to teach al these languages.

Dutch, English and French. I can write French but my speaking is not that good. But that is because of my Dutch accent.

To anyone that learned a second language in school,and is totally fluent, does it sound totally natural when you listen to someone? Cause I always feel like I'm straining to hear and pay attention...

Yeah, native speaker

Ehm.. it's not very similar to German

To quote Golden

Actually no. I learned Spanish but I have an EXTREMELY hard time actually deciphering what a student who happens to speak only spanish is saying to me because they blend words together and speak in slang. I can write extremely well, it's a challenge to speak though since I'm a little slow doing the translating in my head. Hearing a teacher though is a breeze since they speak correct Spanish

That's EXACTLY the same problem I have with Spanish lol If a teacher talks it's easy to understand, but if I hear a regular conversation I'm I just want one day to be able to hear Spanish and it be the same kinda feeling when I hear English if that makes sense

But you are

I believe it happens with English and any other languages as well.

You see, when you are hearing a news report on the TV in your mother tongue, your ears will detect the moment where some information you may find interesting is being said, and you can disconect that conection when you know there is no longer interesting info to hear. That's an skill you naturally learn after a long exposure to a language. However, when you listen a news report in a foreign language, you have to pay attention to every word. This is because your exposure to your mother language has been way longer than a second language, and it takes a lot of exposure time to that second language ( in your case Spanish ) to develop that kind of information selection skill.

Teachers have to speak slowly so that students could understand them, specially on basic level. Then, while passing intermediate and advanced, their fluency should increase because you already have "some" experience with the language. Students may even find boring if the teacher speaks too slowly, haha. Nevertheless, in real exposure, people will talk very fluently, so my advice to people who are learning Spanish is to have more real exposure to Spanish!!!. Movies and talk shows are a very powerful tool to help you.

Fluent: English
Speak Well: Spanish & French

And I speak and write Latin very well but it's kinda useless unless you go into a very scientific field.

I think it's totally normal that a second language wouldn't sound natural. I've lived in the US for two years and it's my only non-native language that now seems totally natural to me.