Try

Don't try so hard, the best things
come when you least expect them to.

Don't waste your time

Don't waste your time on a man/woman,
who isn't willing to waste their time
on you.

Love

Just because someone doesn't love you
the way you want them to, doesn't mean
they don't love you with all they have.

Tears

No man or woman is worth your tears,
and the one who is, won't make you cry.