If you could write a note to your younger self, what would you say in only three words?
I had two thoughts. 1) Words can hurt. 2) Try your best.
What would your note say? 
Preserve your soul.
ask for help
Wont be better
Buy Microsoft stock.
I love you
Protect your health
You have life
Try having fun
You can love
Forgive your self
I am enough.
You are going to be alone for the rest of your life. You are that flawed, unlovable and unacceptable, don't bother wasting your time pursuing a player 2.
and whatever your heart wants is irrelevant. Just don't bother, you will not win.
Erase your writing mistakes, not yourself.
(Sorry it was 6 words not 3. I made this up a few days ago when I was and still am sinking, but I get up to breathe and not only sink)
Don't forget to breathe...please.
Try to take care.
Try to stay safe.
Try and love yourself.
Don't bring weights when you swim.
(I like comparing the 'bad things' as weights or other things other than my experiences or people... Swimming is something I love that I do rarely. I might make a post about it some time in the future. Swimming is living in my metaphors.)