Se Preésenteration

No need to capitalize every word of a title
A noun would sound better though

Bonjour !

Space before and after : ; : ? ! « »

Je m'appelle Alicia, et je suis'ai trente-cinq ans.

In French and in all Latin languages, you "have" your age, you "are" not it => j'AI trente-cinq ans

J'habite à Port-of-Spaind'Espagne.

This one has a French name

Je suis trinidadiene et tobagoniene.

AFAIK "trinidadien" is how people from Trinidad-and-Tobago are called; "tobagonien" refers to people who are specifically from the very island of Tobago

Je parle anglais mais je parle un peu français (aussi).

Il est de France.

If he's French, he's from France by definition (this is redundant but the sentence is grammatically right)

Ill m'aide moi avec maon français.

Neutral object pronouns are the following => me, te, le/la, nous, vous, les. Those ending in <-e> are elided in front of a vowel => il m'aide
Language names are masculine => le français, le portugais, le russe, le japonais, le chinois...

Maon pays est un belle deuxconstitué de deux belles îles.

"Mon pays est deux belles îles" would have a singular subject ("mon pays") and a plural complement to the verb "être" ("deux belles îles"), which would be quite dissonant
être constitué de = to be made of

Il y a de belles pages et ldes nourritureplats délicieusex.

Indefinite quantity of something countable = des (in texts, "de" is used in front of [adj. + noun] for stylistic reasons) => de belles plages
page = page ; pLage = beach
"nourriture" is uncountable ; "nourritureS" (pluralized) means "types of food", but here "plats" would be better. "Un plat" is an elaborated dish with several ingredients

Nous avons personne[sommes ?] des gens gentiles.

Didn't you mean "we ARE nice people?" => nous sommes
Same observation as above about "des"
"people" in general, as a whole => gens

Nous adorons faire la fête, manger et boire, mais nous travaillons tresvraiment beaucoup.

"très beaucoup" is pleonastic. You need "vraiment" if you want to emphasize "beaucoup"