Some suggestions, maybe one will feel like a comfortable place to start…
Open a new savings account. Set up a standing order for the day you get paid and transfer £60 to savings - that is 1% of your income so seems a completely achievable amount to save.
Or do the above but with a higher amount. Decide how much would be a reasonable percentage to save and gradually increase the standing order til you reach the target amount.
Take your credit cards out of your purse. Remove the saved card details from any websites and remove the details from your phone. Only use your debit card so you are not increasing the debt.
What interest rate are you paying on your credit card debt? Unless they are at 0% paying off should be a priority. Mentally write off that bonus & when you get it pay off the credit cards.
How much do you have left after you have paid the fixed amount to the joint account?
Agree with your husband that you should both increase the amount you pay into the joint account and try to build up some savings. Does he have credit card debt too? Or does he have his own savings?
Start a new note on your phone. Just for one month (or one week if a month seems too difficult), every time you are tempted to buy something non-essential, just write the non-essential thing on the list. At the end of the month (or the week) set aside some time and review the list. Group the items by type, e.g clothing, shoes, make up, homeware, takeaway coffee, taxis, gadgets, books, magazines, etc. Take a few minutes to see if you have changed your mind about any of the items - perhaps a month later that lipstick that is pretty much identical to another 3 you already have in your make up bag might not seem so appealing. If you have multiple items in a category, decide which would be your top choice if you could only buy one. Then after spending time considering each item and whittling down the list if you still really want the top thing in each category and you can afford it without going into debt buy it. Everything else that was not the favourite thing but which you still want can be migrated to next month’s list. Repeat…
As a companion to that, you could transfer the money you would have spent on the non-essentials to your new savings account and if you decide to buy it after all at the end of the month the money has to come out of savings.
Don’t change your spending habits but for one month (or week) keep a detailed spending diary so every time you buy anything at all you have to write it down. At the end of the month (week) categorise and review and decide whether you are happy with where your hard earned money is going.
See if you can change your mindset, so instead of getting short term pleasure from buying something, you transfer that to getting pleasure from seeing the numbers go up in your savings account or the numbers go down on your credit card.
If you have an app for your current account check the balance every evening and if it isn’t a round number transfer an amount to savings so that your account ends in a zero.
One day a week bring a packed lunch or a thermos of coffee to work rather than buying lunch/coffee. If this is ok, increase to twice a week and so on.
If you spend a lot on clothes/shoes etc, start keeping track of what you actually wear each day. After a couple of months or so you might see a pattern e.g. that you are only wearing a small percentage of the clothes you own. Or you might realise that you love buying dresses but in real life you live in jeans and only wear a dress once a month or so. (I have this situation but with lipsticks, I like the idea of wearing red lipstick so I buy lots but never wear it).
Read up about You Need A Budget. After you’ve familiarised yourself with it, take out a trial and use it religiously for the 34 days. If you find it helpful spend the approximately 0.1% of your monthly salary to pay for a subscription.
Don’t despair, you have an enviable income and it sounds as though there are some easy wins available. Small changes really add up.
I’ve taken so long typing that you’ve probably already had all these suggestions from other posters.