Introducing myself

Hi! My name is Paula and I'm 19 years old.
I live in Brazil, in the countryside of São Paulo and work as a photo designer.
I have always loved learning about other cultures and countries, especially when it comes to English. I have learned English by myself and I always want to improve it.
I live with my mother and brother and we have two cats. They're like part of the family.
My dream is travelling abroad and visiting different countries, having fun and keeping good memories from that experience.
Well, I'm not very good at describing myself, but I have done my best.
That's it!

Bye!

I loved / I have loved

I learned / I have learned

I did / I have done

The simple past sounds finished in English. It usually needs a time reference.

The present perfect tense neds no such reference. It continues the action to the present day.

So... I loved learning English.    When? Have you stopped? We don't know.

I have loved learning English.  This continues to the present day. You are probably still enjoying learning English.

The second point is to continue using the same tense in a sentence.

"My dream is travelling abroad, visiting other countries, having fun.... etc." 

or

"My dream is to travel abroad, (to) visit other countries, (to) have fun... etc."

You don't have to repeat the word 'to'. It is optional.