My Daya journée

my day = ma journée (the day as a lived/experienced period is "la journée")

Bonjour, ¶
¶
¶
Je veutx apprendre la grammaire francçaise pour mon examansen.

-t never is a first person indicative ending
Without the cédille, <ca> would be pronounced /ka/

Donc, s'il vous plait, correcteigez mon francçaise.

to correct = corriger (the 2PP imperative is "corrigez")

Je suis avec mon peère qui mange une pomme là tout de suite, c'est treès ennuyeux.

Hier Jj'ai marcheé avec mon petite amie mais Iil eétait treès lente.

Pronouns aren't capitalized (the only case where "il" is capitalized is when talking about God, in which case you're in a quite lucky relationship!)

You're confusing masculine and feminine endings, it's either:
"mon petit ami était très lent" (my boyfriend was very slow)
or
"mA petitE amiE était très lentE" (my girlfriend was very slow)

[Il dansait avec ell quand j'appele. ?]

Who's calling whom/dancing with whom here is very unclear, I didn't understand the sentence