Before I retired 7 years ago I had grand plans of things I was going to do to stay busy and have some type of structure in my life, e.g, a class at the local community college, volunteer work at a hospital, etc. None of that ever came to fruition! Once I was retired, I absolutely loved the freedom I had to do whatever I wanted, whether my day was busy or I just stayed home and enjoyed my quiet time!
My only routine now is to try to get my errands taken care of in the morning, do a little work on my patio or do a little housework (not much!). I like having the afternoon free to go shopping if I want, take a nap, read a book or lounge on my patio. I had structure in my life every day when I was in school, college and the workforce. I don't want structure in my retirement years! It may take you a little time to adjust to retirement - go with the flow and just enjoy!