Just a word of encouragement. I travel solo and ride a
scooter. Don't know which resort you are at... I was at AKL... I got to the bus stop extra early since I knew I might have to wait for another bus if there were multiple scooters. I was able to make it to the park by 6:15. Getting through the throng was a bit tricky but most people were really very considerate and helpful. Remember you just have to be in the park before the 7:00 AM opening
Being solo makes no difference as far as I can tell. Just follow the tips given here and you will be fine. I went to the table area behind Starbucks on Hollywood Blvd since it was not congested and was able to get a BG.
BTW, when I was called to the ride, I elected to park the scooter... there is an area just past where you enter near the exit to the attraction with a CM who looks after both scooters and strollers... and walk through, though you can certainly take it most of the way if you wish. The walking wasn't long and I just found it simpler. But that's your call.
Remember, head out to the bus stop extra early and plan for other scooters!

Relax... and enjoy!