Traveling to HKIA from Shekou Port Jan. 20 at 12:00.

I’m leaving Hong Kong via American Airlines to Los Angeles for holiday and this is the first time leaving mainland China to HK. I have two backpacks and a suitcase that will be with me, will I run into any issues once I’m there? Tickets have been purchased and taking a DiDi on that day at 09:30. Any advice would be great thanks!