So you want to be a writer. You joined a critique group, took writing classes, and attempted to sell your soul to the devil to get published. You're on the right track...well, except for the soulless part. One more suggestion...read.
So, say, just off the top of my head, you want to write YA Science Fiction and Fantasy, you have read everything you can get your hands on in the genre. You don't have to love every book, but think about what works and what doesn't. The more you read, the better your writing will be. I've read books and wondered, "How did this get published?!" then gone back through my writing to make sure I haven't made the same mistakes.
Next week (after the holiday) I'll go through the process of getting an agent, starting with queries. There's a ton of info on queries out there, but I'm going to break it down. Soon you'll grab an agent's attention and be on the road to becoming published.