“I’m good at editing” isn’t bragging. It’s information. Let people know what you bring.

There is a difference between claiming you are better than other people and telling them what you can do. The second is just useful information, and staying quiet about it does not make you humble. It makes you invisible on the day somebody is deciding who to ask for help with the video.

Practice saying one plain sentence about something you are good at. I can edit, I am fast with spreadsheets, I know how to fix that. No apology in front of it, no joke behind it. People cannot use what they do not know you have.