Wow! That's a great initiative from a newbie — thinking and asking on how to contribute in this forum rather than asking on how to earn.

Since you're new, you might want to read pinned posts first since they're the ones that's must be read upon joining the community. And since you have already knowledge on some things, you can use that to contribute in this forum. It might be in a form of response to a query, or an informative thread. Things like that. Your choice. Anyway, welcome to the forum.