Accept who you are and how you need your own personal world to be shaped.
Do NOT fake it 'til you make it. Just be you. You're enough.
Live in truth- and yes, that means YOUR truth, not the truth others are telling you is 'yours'.
Don't gossip. Don't hang out with gossips. You'll be much happier for it.
Read the room.
Think critically, above all.
You don't have to do it all with grace, dignity, and a stiff upper lip. Go ahead, throw a good wobbly, with purpose and good reason, and then, move on.
There are no mistakes. Every day really is a school day.
Be nice to your body. You've only got the one.
Box breathe like a Navy SEAL.