OP, definitely follow the advice to write everything down that you are spending for a month. That doesn't require an immediate change in all your habits or major decision making, but it will be eye-opening. I say this from personal experience. Until August, I was blaming my high cost of living area (i.e. rent, dog care) on my money situation. Those were non-negotiables to me, and I took little ownership in the fact that I was living practically paycheck to paycheck.
Then I started tracking where my money went. Just doing so will already make you more mindful, as others have noted, because you don't want the numbers to look so bad. For me, I saw I was spending more than I could have ever guessed on shopping and dining out. Those are things entirely under my control, and problems that would follow me no matter where I live or how much I make. Your vices might be different, but you'll find that they add up even if there are just 20$ here, 20$ there... I was shocked about my own numbers. Once you have proof of where your total monthly spending vs. the money coming in lies, you can make informed decisions about what is most important to you, and how you'll fix your financial problem. This thread has listed many, many great first steps you can take.
As with many worthwhile problems, the solution here is simple, but not easy. Make the decision once, and avoid becoming bored/disenchanted/impatient by never wavering from that decision. Here's a little quote that describes this concept much better than I do:
"We know how to talk ourselves out of or into things better than anyone on the planet. When you sit down to do the thing you feel called to do, one of the main things you'll have to face is 'the discussion'. It's annoying and tricky and sly. It ruins more dreams than just about anything on this planet. But there is a way to beat it: The best way to crush the discussion is with a decision... Decide that every morning at 7 o'clock you will do 'x'. Then, on day four, when doubt creeps in, and the discussion fires up, say to yourself --- 'Ohhhhh, I wish you'd been around earlier. We already decided to 'x' at 7 a.m. I'd love to discuss this with you, but we've already made our decision. Thanks!' We all get a little addicted to the discussion, because it keeps us from being brave. We get comfortable with losing to the discussion. The goal is to make the decision once a month, and then once a year. Discussing whether or not to create something each day is exhausting. Decide once, and then just do it." - Jon Acuff
So: Decide now that you will get your finances in order, and do it, no matter what. You can start by deciding that you will track every single penny in and out, no matter what. November is your month to change!