There is some very good advice here, and I would like to add one more comment.

Watch out for the "2 Month Experts". I have seen several cases where somebody new comes here asking the most basic beginners questions like:

I just found out about this hobby, where can I get a plane? How much do they cost? What type of fuel do they use? Etc.

And then 2 months (or so) later, they are handing out the advice like they've been doing it forever. In many cases it's not harmful, like if you ask a general question that would have a standard answer, but I have seen a few examples where the advice is not good, and even dangerous.

So, how do you avoid them? Just read a few posts, after a while you will start to get a feel for which members give good advice, and which are blowing smoke.