Such a combination of surnames is due to the fact that I’m half Spanish and half German.

"due to the fact that" is a common phrase, you hear "due to that" less.

Indeed, I was born in Madrid, but for the state of Germany, it was in Berlin.

Not quite sure what you mean here. Maybe explain how you got the dual citizenship in Germany even though you were born in Madrid?

I spent the last few years studying languages and music, but this year, at my 23’s I23 I will finally start thea chemistry course at UNED, but I’m looking to change the course to biochemistry or biology at UCM.

Furthermore, I used to play rugby and later on, I also practised water polo, but I ended up doing powerlifting.

No errors here, just letting you know the British spell this "practised" and Americans spell this "practiced". Just a fun fact.

The only one who couldan beat you is yourself, and the way to pick upget better is to improve your way of being.

My dreamed job would be something related to conservationism and environmental protection.

"dream job" is the common phrase, not "dreamed job"

PI want to put in practice scientific and political solutions to the problems that developing countries and their wildlife confront.

Earlier you spelled "practised" with an s and here with a c. You might want to decide whether you want to consistently use British or American English, there are some subtle spelling differences across the dialects.

Such aMy combination of surnames is due to the fact that I’m half Spanish and half German.

Indeed, I was born in Madrid, but for the state of Germany, it wasI live in Berlin.

I'm not entirely sure what you mean here. It sounds like you're saying that you were born in two different places, which is a contradiction.

I spent the last years studying languages and music, but this year, at myage 23’s, I finally start the chemistry courseprogram at UNED, but I’m looking to change the course to biochemistry or biology at UCM.

The one who couldan beat you is yourself, and the way to pick uplife more weight is to improve your way of beliving.

I’m passionate about language acquisition, music and of course the sciences.

Indeed, my goals are to catreach up to C1 in German and English, enter into a music conservatory and keepto continue studying sciences.

My dreamed job would be something related to conservationismsustainability and environmental protection.

PAnd put into practice scientific and political solutions to the problems that developing countries and their wildlife confrontface.