I think lessons in life help pne to make better decisions financially as you learn that you dont need to have store or clothing accounts that eat away your money every month.
3 years ago i started a journey of cutting down DEBT as i no longer enjoyed my hard worked salary. So i started closing clothing accounts that i had. For the last year or so, i have started close off big debts eg: Personal Loan and CC when i got some extra cash instead off spending it on things.
Last month I got some cash and i took 11k,z dumped it into my one CC cancelled and closed it.
I am now left with 2 credit cards and i will be closing the 1 then just keep only 1 and manage it.
When it comes to mobile phones, every 5-6 i get a new phone contract and after 2 years i only take sim contract for data, airtime and sms package as its manageable. I do the same for the wife.
I have a Excel spreadsheet that i have been using for over 10 years since i started working were i track my expenses and even car maintenance.