Every day is a new adventure for me, since I wake up untilfrom the moment I wake up to the moment I fall asleep. Everyday is a new adventure for me, from the moment I wake up to the moment I fall asleep.

Every day is a new adventure for me, sincefrom when I wake up until I fall sleep. Every day is a new adventure for me, from when I wake up until I fall sleep.

Note: “every day” is correct here. Written as one word, it is an adjective (eg: my everyday clothes, an everyday occurrence, etc.) Written as two words, it’s a noun, which is what you want 🙂

Many timesOften, I think my life is wonderful still,. I have two amazing childrens. Often, I think my life is wonderful. I have two amazing children.

Many times I think my life is wonderful still, I have two amazing childrens. Many times I think my life is wonderful, I have two amazing children.

“Still” implies life is good despite something bad that has happened. (Eg my life is still good even though I’m in debt). “Children” is the plural of “child”, so no “s” is needed.

Sebastian is a great boy, alt. Though hie has disabilities, he is improving every day. Sebastian is a great boy. Though he has disabilities, he is improving every day.

These two clauses should be separated.

Sebastian is a great boy, a. Although hie has disabilities, he is improving every day. Sebastian is a great boy. Although he has disabilities, he is improving every day.

Previous was a run on sentence with comma splice.

some times I thinkIn spite of the fact that Sebastian does a lot of things, but he looks likehe still looks inexhaustible. In spite of the fact that Sebastian does a lot of things, he still looks inexhaustible.

sSome times I think that Sebastian can’t do a lot of things, but he looks like inexhaustible. Sometimes I think that Sebastian can’t do a lot of things, but he looks inexhaustible.

Using “but” indicates you’re contrasting two things. I’m not 100% clear your intention here. My edit would mean that you think he can’t do a lot things (because of your knowledge of his abilities, etc.), but when you look at him he looks like he would, in fact, be able to do everything. “Looks like” would be paired with a noun (eg “he looks like a turtle”). “Looks” is paired with adjectives.

I wish with great hope that Sebastian become ins a great person. I wish with great hope that Sebastian becomes a great person.

I wish withhave great hope that Sebastian become ins a great person. I have great hope that Sebastian becomes a great person.

EvHery smile she give me iss are the most tpreasure that I savecious things in my memory. Her smiles are the most precious things in my memory.

Every smile she gives me is the mosta treasure that I save in my memory. Every smile she gives me is a treasure that I save in my memory.

You could use “the most treasured” as an adjective (eg “the necklace from my mom is the most treasured item she ever gave me”). Since you’re saving something in your memory, you want a noun (ie: “treasure”)

I hope that Marianita fulfills all your wishes. I hope that Marianita fulfills all your wishes.

This isn't grammatically incorrect but I'm not sure what you're saying here. Are you referring to the wishes of society, of family?