Glad to hear you are staying sober now Katie. All the things you seek in life will be much more attainable without alcohol.
The problem with most of us though is that we are very impatient, it's part of our addictive personality. We want instant gratification with drugs/alcohol, but we feel that way with our regular lives too sometimes. Having a house, job, relationship, etc and all the other things you want are absolutely attainable, but not all at once. You need to start small and also take inventory of some of the things you DO have. For example, you were very unhappy while in rehab and wanted nothing more than to get out, and now you are! You also have a very supportive family - as much as it may not seem so you are incredibly lucky to have parents still standing beside you throughout all this.