I like to learn, question everything and beingcome better, not only on the outside, but also the inside me.

(1) Alternatively, instead of "become better", you can also just replace it with "grow".
(2) The phrase is "on the outside/inside".

I am thoughtful, especially with my words.

I make (the) effort to communicate in a clear and careful way, because I believe that what you say also buildreflects what you are.

Perhaps "reflect" is a more suitable word to use here.

Also, I am so sensitive: I get deeply affected deep withby things, it makes me an empathetic person, understanding and being alert always aboutware of how everybody feels.

(1) "Deep" it a noun. "Deeply" is the adverb.
(2) I think "deeply affected" might be a little more natural than "affected deeply" here.
(3) Being alert is more reactive and conscious, while being aware is more "under the surface", and can be consicous or subconscious. For this reason, "aware" strikes me as the more appropriate word.
(4) "Always aware" sounds more natural than "aware always" here, even though both are grammatical.

I don't have many relationships, but I givplace lots of value ton those that I have now.

I think the better phrase to use here is "place value on (something)".

I deliver honestly, and I give the best of myself to wthomse I love.

(1) Alternatively: "I give my best self to those I love."
(2) "Whom" is not appropriate here. "Whom" needs a previous object to reference, such as in the phrase "my partner, whom I love", and cannot be used in isolation to introduce a person.

In a world that is sometimes is fast, I think that this is a way to be different.

This sounds more natural.