Any tips for a single mom traveling with a 2 year old?

Im going on a 6 hour flight tmrw. The flight will be in the morning - night. Im so nervous traveling with my 2 year old son. I wish i got a red eye flight. Im bringing snacks, and my phone for him to watch shows on. But just realized i have no headphones for him to listen, and an iPhone which is incompatible with that the airline provides. But im going to bring coloring books, snacks, his blanket, candy (lolipops) downloaded tv shows. And idk what else.

We have an isle and middle seat for bathroom trips n stuff. But im terrified he might cry or throw a tantrum and people around me will get annoyed. Hes not a big crier tho but still worried about his reaction to being on a plane. Any advice?? Im a young mom and terrified rn.