Honestly? I live cheap. Look at your spending. Do you pay much for things like haircuts, beauty products, makeup? Are you a member of a gym or paying for classes?
Just.... don't.
I get my hair cut about once or twice a year, cheaply. Ask around and you can often find people who come to your house - they tend to be inexpensive as you aren't paying for the costs of a salon.
You don't need to join a gym. You can go running for free, lots of parks have outdoor gym machines, and you can swim in public pools occasionally for a lot less than a membership. Classes eg yoga etc are terrifically expensive - get a good DVD and practise at home.
If you are paying for eyebrow threading, learn how to pluck your own with tweezers. Paint your own nails etc etc.
Don't by brand new cars or anything on finance. Get a 3 or 4 year old car (at best) of a reliable non premium marque - Mazdas and Toyotas run well for years, Fords are also good value.
Buy fresh ingredients & cook from scratch.
Don't spend money constantly fiddling with your home decor. You don't need a farrow &
Ball navy blue feature wall, it will be out of style next year anyway.
I'm always by how many people i know drizzle away money constantly on this stuff. Never buy stuff on the spot. Always wait a day or two. Really think about if you actually need it, for every purchase you make