CORRECTIONS:

 → I was very tired,xtoday because I couldn't sleep last night.

Note: Put an indention to start your paragraph. No need to put a comma between tired and today because you're not separating two clauses

                                                         P​

My husband came back home very late (at) around 3#A.M.            

Note: There should be a space between the number and A.M. A preposition is needed to separate late and around

    WF (couldn't)

​I didn't have a good sleep until he came home.                         

    Note: The modal verb "could" is more appropriate to use in this sentence instead of the be-verb "did" because you are talking about something that you could do/couldn't do

Why he came home late C (because) S (he) was drinking with his friends.

Note: Omit the "why" and start your sentence with the pronoun "he" written in capital letter. Add a conjunction to connect the two clauses. In this case, use "because" (to show the reason) written after the word late then add a subject (he - referring to the husband) to introduce the second independent clause.

                                                                                                MP (about) 

→ He likes meeting his friends x and dining with them.#I try not to care in that case.

Note: Put an indention to start another paragraph. Also, always put a space after the period and the next sentence. There’s too much space between the word “friends” and “and”.

                     (I am still not)

Nevertheless, I am not still used to his returning home too late.

Note: Always place the conjunction between the auxiliary verb (is, am, are) and the negation "not"

This situation happens 3 or 4 times a year. (NR)

I always ask my husband to call me (to inform) why he is late and where he is.

 Note: Add "to inform" or "to tell" just to make the sentence clearer.

But he tells me that he doesn't know how fast time flies, so he sometimes forgets to call me.  (NR)

Other way of saying: But he tells me that he's not aware how time flies, so he sometimes forgets to call me.

REVISED:

      I was very tired today because I couldn't sleep last night. My husband came back home very late at around 3 A.M. I couldn’t have a good sleep until he came home. He came home late because he was drinking with his friends.

     He likes meeting his friends and dining with them. I try not to care about that case. Nevertheless, I am still not used to his returning home too late. This situation happens 3 or 4 times a year. I always ask my husband to call me to inform why he is late and where he is. But he tells me that he doesn't know how fast time flies, so he sometimes forgets to call me. /( But he tells me that he's not aware how time flies, so he sometimes forgets to call me.)

EDITED BY TEACHER EARTHA

Legend:

Red                              Remove/omit

SF                               Sentence Fragment 

Lower                         Change the letter(s) to small letter(s)

                                    Change the letter(s) to big letter(s)

FR                               Wrong word order

→                                Indent the sentence.  

NR                              No error/mistake

WB                              Wrong abbreviation

↗                                 Start a new paragraph

#                                  Space needed

×​                                  Remove a space​

∽​                                Transpose (change the position of the word) 

WSP                           Wrong spelling

AP                               Add a period (.)

AC                              Add a comma (,)

AE                               Add an exclamation point (!)

AQM                           Add a question mark (?)

AAP                            Add an apostrophe (‘)

PL                               Change to Plural form

WF                              Wrong word form

WW                             Wrong word

WPU                           Wrong pronoun usage

RO                              Run-on (Fused Sentence)

S                                 Subject Needed

V                                 Verb needed

P                                 Preposition needed

C                                 Conjunction needed

A                                 Article needed

MP                              Misused Preposition

//                                  Faulty Parallelism