Do you have a local yarn store? Or a local knitting group? Try looking into that--you can find other knitters that can give you feedback on your work. If you post a picture here with any areas of concerned pointed out, I am sure you could get some good feedback here.
It sounds like you got the basics down. Think about what types of things you would like to knit--sweaters, hats, socks? Do you want to knit with synthetics, natural fibers, plant fibers? I reccommend trying out a variety of fibers to see what you like the best.
both carry a variety of fibers at good prices.
If you are interested in doing bigger projects, like a sweater, but as you say the lingo is confusing, I recommend the How To Knit a Sweater Book When I picked that book up, I knew how to K, P, cast on, bind off and do basic increases and decreases. The book walks you through step by step on how to make very basic sweaters. They aren't the most shaped and attractive sweaters there are, but I found it to be excellent as a starting point. My mom, bless here, still wears the sweater I made for her out of HomeSpun from that book.
Something else I did as I moved along in knitting--I took a half a day workshop on finishing techniques, and it was amazingly helpful. So if you have the opportunity to do something like that a little down the road, you should give it a try.
Good luck and happy knitsy!