I can sleep all day (however I can't do itactually can't because, you know, my monm will be so angry toand make me get up.) I can sleep all day (however I actually can't because, you know, my mom will be so angry and make me get up.)

I canwish I could sleep all day(, however I can't do it, you know, my monbecause my (mom? man?) will so angry toand make me get up.) I wish I could sleep all day, however I can't because my (mom? man?) will so angry and make me get up.

The first part sounds like you are expressing your desire to sleep all day, while the second part sounds like you can't because your...misspelled word, not sure if mom or man (in this context "my man" is a slang word for your boyfriend or husband) would be mad. My edit reflects this.

I'll go to my school and face many lessons and exams tommorrow. :( I'll go to my school and face many lessons and exams tomorrow. :(

My Dima also has to wait five days to get a message from me. My Dima also has to wait five days to get a message from me.

My Dima also has to wait five days to get a message from me. My Dima also has to wait five days to get a message from me.

Is Dima the name of a person? Not sure who "Dima" is. Is this your man (boyfriend or husband)?

Because I'll hold my phone all day if I want to share something forwith him. Because I'll hold my phone all day if I want to share something with him.

Because I'll hold my phone all day if I want to share something for him. Because I'll hold my phone all day if I want to share something for him.

Unclear: are you waiting with your phone all day because you are waiting for him to share something, or send you a message, or call you? Or: Do you want to share something on your phone with him but it will take all day?

So I've decided to choose a day of rest to send a message forto him. So I've decided to choose a day of rest to send a message to him.

So I decide to choose day of rest to send a message for him. So I decide to choose day of rest to send a message for him.

Unclear: you decided to rest all day to wait for the message from him? Or: you decided to rest from other activities so you could send your message (the thing you were waiting to share earlier)?

But waiting is keeping everything fulling of hope. But waiting is keeping everything full of hope.

Did you mean this?

But waiting will keep everything (?) fulling of hope. But waiting will keep everything (?) full of hope.

Fulling is not a word. Everything would be "full of" hope. Unclear: Who or what are you referring to with "everything" here? Are you full of hope while waiting, or is he full of hope while waiting? Are both of you full of hope? Why is everyone waiting instead of someone sending the message?

Now, I wish everybody happiness all day. :) Now, I wish everybody happiness all day :)

Now, I wishhope everybody happiness allone has a good day. :) Now, I hope everyone has a good day. :)

This is a more common way of saying that.