Best advice I can offer is read. Places like this and Dogs on Acid are absolutely priceless in terms of learning the production ropes. I'm a noob as well, only really started taking it seriously in the last 6 months after 'dabbling' for years, but I have spent a lot of time reading forums and books, to the point where my knowledge of processes far eclipses my actual skills at applying them! If you don't understand a term used, look it up. There isn't so much in the way of music theory per se for dubstep as opposed to other genres, but obviously there is a lot of terminology used which doesn't mean a thing when first starting out.
Then practice! Experiment, go nuts and have fun with it. Also, try and finish tracks, it's very easy to get caught up an 8 bar loop limbo... By creating whole tracks you learn more about the whole process. I played my first proper 'finished' track to a mate the other day, and he was like 'you know what mate, that's alright!'. Man, I can't tell you how good that felt!
Patience is the final key. I know how I want things to sound but at the moment I'm not getting any where near it... But I will, and so will you. Keep practicing, keep experimenting, keeping reading and studying, ask questions, you will find a lot of talented producers on here and DOA that are happy to share their knowledge.
Hope that helps!