The belief that you are “saving 1%” is an illusion. Credit cards and merchants know that you will spend 15 to 20% MORE if you use a credit card that if you use cash. You would be better off by 14-19% if you paid cash.
Kind of like the sales at stores. “You SAVE” - no you don’t; with that sale, you spent something that you wouldn’t have otherwise, period!
No. Maybe you would. Maybe the population in general of out-of-control whackjobs would. (I'm not including you in that category.) I'm still buying the same eggs, milk, bread and cold cuts that I needed to buy otherwise. But then I charge it instead of grabbing cash.
Now, it IS possible that I might have to let my children go without lunch tomorrow if I didn't make it to the cash machine to get the money to pay for that stuff so I bought less than I needed. In which case, I save money and they're undernourished.
In general, no, I don't spend more because of the card any more than I went nutty in the 80s when I opened my first checking account.