I can relate. It took me 7 years to get the migraine diagnosis, as I was repeatedly misdiagnosed with Eustachian Tube Dysfunction and wasn’t taken seriously by doctors. My neuro wanted me to fill in a diary but it was basically just a spreadsheet and a complete waste of time but it’s part of what they do for treatment - making the choice of whether you can access certain treatments is based on your diary entries and whether they show any improvement. Rating your symptoms of a scale of most debilitating to most mild might be helpful.