Hi Bogi. I made some suggestions below to correct a couple of grammar mistakes and suggest more idiomatic ways of saying things. The lyric reads well. I would see it performed with a very emotional delivery of the pre-chorus.

Where You Could Love Me

(Verse1)
I'm still hoping
You will change your mind
I blame myself
How could I be so blind?
Cause

(Pre-Chorus)
How can I miss someone
Someone I never had?
Why can't you love me?
Yeah, that's living in my head (I need you so bad)
Tried to do the best I can
Seems it wasn't enough
I'm trying to forget you
But it's so hard
Oh, yeah

(Chorus)
They say forget him, but it's not that easy
I'm dreamin' 'bout a world
Where you could love me
Where you could love me
Where you could love me
Where you could
I belong in the circus
Yeah, I'm awfully dumb
Thinking you could love me
Yeah, I'm so wrong
They say forget him, but it's not that easy
I'm dreamin' 'bout a world
Where you could love me
Where you could love me
Where you could love me
Where you could

(Verse2)
Short moments, pictures on my phone
Reminds me how much I want it
Haunts me in the night
You told me to "forget it"
And I don't know

(Pre-Chorus)
How can I miss someone
Someone I never had
Why can't you love me
Yeah, that's living in my head
Tried to do the best I can
Seems it wasn't enough
I'm trying to forget you
But it's so hard
Oh, yeah

(Chorus)
They say forget him, but it's not that easy
I'm dreamin' 'bout a world
Where you could love me
Where you could love me
Where you could love me
Where you could
I belong in the circus
Yeah, I'm awfully dumb
Thinking you could love me
Yeah, I'm so wrong
They say forget him, but it's not that easy
I'm dreamin' 'bout a world
Where you could love me
Where you could love me
Where you could love me
Where you could

(Verse3)
This place doesn't exist
But that would be my heaven
You would kiss me, you would hug me
I know, this won't happen
So

(Pre-Chorus)
Why do I miss someone
Someone I never had
Why can't you love me
Yeah, that's living in my head
Tried to do the best I can
Seems it wasn't enough
I'm trying to forget you
But it's so hard
Oh, yeah

(Chorus)
They say forget him, but it's not that easy
I'm dreamin' 'bout a world
Where you could love me
Where you could love me
Where you could love me
Where you could
I belong in the circus
Yeah, I'm awfully dumb
Thinking you could love me
Yeah, I'm so wrong
They say forget him, but it's not that easy
I'm dreamin' 'bout a world
Where you could love me
Where you could love me
Where you could love me
Where you could

Hi Sir!
Thank you so much for your suggestions. It was my first lyric inspired by a strong emotion and I was really excited to show it to peoples. thank you again 🙂