It helps to just post around for a while first. Not about anything serious. Just pop in anywhere. Ask questions, comment, whatever. Lots of us don't feel comfortable for quite a while. After a while you get to know some members, some you'll like, some you won't, but you'll get a feel for different forums, and where you'd be most comfortable posting.
Give it time, and post more! Don't rush it. You'll get there. ![Cool 8)](./images/smilies/icon_cool.gif)
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...