I don't like to wear a hat and I really dislike silly fascinators but it's a long time since I tried on either of these. I would suggest you go to a good hat shop and try on a few to see if there are any that you like, you never know you may be surprised especially if you manage to see a helpful assistant. Failing that a headband is a great idea and if none of those things work for you then, like others have said, just don't bother and enjoy the day.
Changing from a Manual car to an Automatic after driving manual for around 50 yrs

