Its great to be good friends with yourself,
Not in a selfish manner,
In a way which can  accommodate others into your life,but also not allow them to take advantage of you.
Know yourself,
Love yourself,
Talk to yourself,
Laugh at yourself,
Its worth it..
Trust yourself,even just a bit.it can go a really long way,
Trust your instincts.
You won't ever know anyone,the way you can possibly know yourself.
Love yourself.