Improving my French from Passer d'A2 toà C1 ien français en 12 monthis

Here's how it would sound in French

Bonjour età tous !

À = to
Et = and

J'étudie le français, mon level. Mon niveau est A2 cette mai mois-ci : mon rêve est achevéd'atteindre C1 en mai de l'année prochaine/en mai prochain.

At least a period between sentences expressing different ideas

It would be "ce mai", since month names are masculine, but no one would talk like that

The best verbs for levels, steps etc is "atteindre" ("reach")
"Achever" is rather said about actions, ongoing processes