Shawn Mendes - Stitches lyrics

So, this song about, how after a breakup people may be worn down and that he is gonna need to heal from the girl because he loved her.
"You watch me bleed until I can't breathe" is symbolizing how he is so sad that he sometimes can't even breathe. I can see where you get the self harm, but Shawn wouldn't encouage that in him music.
Same thing with "I'm shaking, falling onto my knees" it's like he is hurt so much he can't even stand up. And then "and now that I'm without you kisses,
 I'll be needed stitches" means that, without her love he will need "stitches" like help healing becaus he loved her so much

"Stitches"

I thought that I'd been hurt before

But no one's ever left me quite this sore

Your words cut deeper than a knife

Now I need someone to breathe me back to life

Got a feeling that I'm going under

But I know that I'll make it out alive

If I quit calling you my lover

Move on

You watch me bleed until I can't breathe

Shaking, falling onto my knees

And now that I'm without your kisses

I'll be needing stitches

Tripping over myself

Aching, begging you to come help

And now that I'm without your kisses

I'll be needing stitches

Just like a moth drawn to a flame

Oh, you lured me in, I couldn't sense the pain

Your bitter heart cold to the touch

Now I'm gonna reap what I sow

I'm left seeing red on my own

Got a feeling that I'm going under

But I know that I'll make it out alive

If I quit calling you my lover

Move on

You watch me bleed until I can't breathe

Shaking, falling onto my knees

And now that I'm without your kisses

I'll be needing stitches

Tripping over myself,

Aching, begging you to come help

And now that I'm without your kisses

I'll be needing stitches

Needle and the thread,

Gotta get you out of my head

Needle and the thread,

Gonna wind up dead

Needle and the thread,

Gotta get you out of my head, get you out of my head

You watch me bleed until I can't breathe

Shaking, falling onto my knees (falling on my knees)

And now that I'm without your kisses

I'll be needing stitches (and I'll be needing stitches)

Tripping over myself,

Aching, begging you to come help (begging, "Baby, please.")

And now that I'm without your kisses

I'll be needing stitches

College

 

College is easy. It's like riding a bike. 

you just need to keep moving

Except the bike is on fire 

and you're on fire 

and everything is on fire 

and you're in hell

have a nice day!