Do I use goggle and gmail or delete

I have been notified by FICO that my information is on dark web. I have a new 12 pro iPhone and have changed bank cards as well as passwords I am very concerned I have had security issues for years

it’s up to you to use them

but for your issue about your info you would need to check if your device has virus and update your software and antivirus and do full scan

also change your password and make a long and very hard one that can not be related to any info about you

for example do not use your birthday / nickname/ address/pit name just unrelated letters and numbers and symbol (like $ % & * ) do not make it less than 20 characters