Welcome to BTT community. Since you are able to open this topic here, I think your initial work is complete here, I mean to open a topic means to open an avenue to gain knowledge. Because if I talk about my first time then I used to see many things in this forum but most of the things were not understood by me. Then when I was able to open the topic then every thing I got to know by asking through my post or opening the topic.
Mainly you have to explore the forum, there are different sections in the forum, you have to spend time and then you ask the things that you don't understand by creating topic like this. And I am sure that you will be get the info from the members.
Another main thing is that you know what subject you are good at or what skill you have inside, then develop yourself in the forum about that subject. Learn the things you don't know and share the things you know.