@Eric Fitzgerald congrats on graduation!
There are a ton of good suggestions about using apps, but I think your initial success will come from establishing great habits centered around tracking your daily spending. My wife and I weren't good at getting ahead with money until we created a tracking spreadsheet that we updated daily.
My recommendation:
1. Debit not Credit - to start, get good with maintaining a positive checking account balance. Once you build the great habits below, expand into credit card advantages (2% cash back rewards, travel hacking, etc). Be patient, they will soon come if you stay true to these habits.
2. Make a spreadsheet - put your checking account balance in bold at the top of it, then create categories (columns) for various things like income, housing, utilities, auto, medical, groceries, out to eat, fuel, etc. Make the spreadsheet calculate the total value of each column and the either add or subtract those subtotal to/from your balance. At any moment you should know how much you have in that account.
3. Always get a receipt - this is the game changer! Every time you go somewhere and spend use your debit card, get the receipt and shove it in your pocket.
4. Dump your receipts by the computer - this habit makes it easy to input those values into the spreadsheet.
5. Log your expenses - enter those receipts into the spreadsheet and be sure to look at your balance as of that moment. You don't have to memorize your balance but at least have a good idea of whether you are sitting at $1500 or $5 before your next paycheck. As time marches on, that balance will get bigger by the time you are ready to receive your next paycheck.
6. Become/stay humble - you don't need the latest and greatest if you know you have the means to get those things but you would rather build your wealth.