See the world - I thought I had to have a career and I had to have it in my twenties so I've spent my life working for something I'm still working to achieve. I've realised later than I should have that the time to travel is whilst I'm still young enough to appreciate it.
Stop self shaming - there are plenty of people more than willing to do it for you, don't agonise over things you can change.
Stop comparing yourself to others and their choices, at least if you listen to your instinct and it's wrong you can blame yourself and not resent others for it.
Follow your heart - your head can be too sensible, if there's a time to screw up, it's now.
Visit a European City on your day off - be spontaneous, many cities can be reached within two hours and realistically you'd spend that time travelling around London anyway!
Stop dieting - eat your vegetables, drink plenty of water and go for a run now and again.
Don't kill yourself if you don't go to the gym, you can always go tomorrow.
Don't sweat the small stuff - shit happens, life goes on.
Clear out your wardrobe - if you haven't worn it in a year then get rid, why add clutter where it isn't needed.
Find your passion and follow it, it's a tale as old as time but life really is too short!
Take a social media break - live in the moment not on the Internet
Let go of the past - it's a cliche but it's in the past for a reason
Meet a guy on a night out - get rid of tinder, if you fancy a guy talk to him, what's the worst that can happen
Stop playing games- if you want to text a guy then just text him. Again, what's the worst that can happen?
Give blood.
Splash out on new underwear - it will make you feel better, I promise.
Keep in touch with long distance friends that are still true friends and cut out one way friends.