First, don't post around how you want to be one. That's pretty much a "seal your fate as not being one" action on most forums. You don't have to be a mod to be helpful. I'm always posting so many guides and stuff around here that I made like 5 stickies before I even became mag staff, and I've got over 8K posts in a year. Specifically wanting to become a mod isn't a good sign, it shows people you just want the powers or position, but you don't actually need those to help the community.
Second, patience. Sites that pick staff after seeing somebody for only a few days tend to be the sites with staff problems, because they give people powers without making sure they won't abose them (or can make fair decisions). I don't know what sort of forums you go on where people made mod within 2 days even though they don't deserve it because they say cool things, but that's not here.
