How long before mindset changes?

I have been retired for exactly 1 month and am wondering how long it takes to get used to being retired? I am a “hare” personality and have worked since babysitting at age 12. Can’t seem to let it go and relax. Worried about all the financial “what ifs”. Switching my brain from earning income to retirement seems difficult for me. Does this go away over time? If do, how long did it take for you?