Could you provide me with three helpful practices to help me regain control of my finances?
Here are some ideas I have for you to get back on top of your finance:

1. Budgeting - this is extremely helpful in gaining an idea of your income and where you're money is going. It will also help you lay out any short or long-term goals you would have regarding your finances. A good rule to follow when it comes the budgeting is known as the 50/30/20 rule. What this means is you should allocate 50% of your after-tax income to expenses you consider essential, then you would want to allocate 30% to the things you want such as amenities in the last 20% should go towards your savings. 
2. Financial safety net - this practice will allow you to have money set aside for emergencies. Doing this will allow you to not rely on using a credit card for paying for major unexpected expenses. It's common practice to save about three to six months of your current living expenses to build that emergency fund.
3. Paying existing debts - existing debt can be a major contributing factor to the drain on your finances especially when faced with high interest rates. It's a good idea to make a plan to know how long realistically it would take you to pay off any loans or debt you may have. Cards that have the highest interest rates are the ones you're going to want to prioritize making extra payments on. You'll want to make sure you're only charging what you're capable of paying each month. 