Traveling Alone with toddler help?

Hi there so I’m about to be going back east from west coast (usa) for a few months and I’m nervous about flying alone with out the dad to help this time. I know it’s gonna be hectic and challenging at times but if anyone has ever been on a plane with 2yr old boy for long hours,

how did u survive the airport and luggage and all the things to bring? So many things lol and what’s your advice and tips for me?

Sorry for the typo errors I’m not at my best at the moment.

Thanks 🙏🏼