Learn to enjoy simpler pleasures. Take a walk. Watch a video you already own instead of feeling depressed that you can't go to the movie theater.
If you are terrible with money, DO NOT GET A CREDIT CARD!!
I KNOW! Novel Concept.
Once you have done that, spend only what you can afford.
The above is all great! Not much more to add.
Love your job. If you don't love it, find the job you love.
Keep doing enough of these things and you will be surprised at how happy you have become without noticing it....