I just realized FP+ is all new to you

Are you trying for SDMT or A&E? I booked ours for this trip on Jan. 4th and got everything we wanted when we wanted; but, I was much less concerned since it's just DH and I this trip. Of course there are definitely rides we have to do (multiple times!) but we are focusing more on other things this time. However what was interesting was that I could have gotten A&E any day I wanted for any time! Usually that's not the case. This is our 3rd trip with FP+ and I was able to get everything we wanted at good times the last 2 trips, also, including SDMT but never tried for A&E as my two DS's have no interest. And I've never gotten up early to book them
You asked about shoes in another post. Many people suggest Tevas, Keens, my husband loves his Chacos. I do wear sneakers sometimes depending on the time of year we go but can also do flip flops if they're good & supportive, like Nike or Under Armour. Our last trip I discovered Sketchers Go Walks and I absolutely

them! They aren't the cutest but its like walking on air. I think the key is switching shoes every couple days so bring at least 2 pairs. Even the most comfortable pair at home can cause pain/blisters with the amount of walking you do at WDW so changing them out with another pair helps most people. Bottom line it depends on your feet but this is what works
for me and what many here suggest when asked