At least you still have a place to live. I got sober in my late teens. There were no personal computer, or no cell phones. We did have a house phone where calling 30 miles away was a long distance call charged by the minute. I use to carry extra dimes in case I had to make a call on the road at a phone booth. (Crap, now I feel old).
Just work harder making your commitments, get to meetings, get a sponsor, work the steps, and don't drink. It will get better. It was times like that I kept telling myself, no pain, no gain. Getting sober is tough enough along with growing up. You can't change anyone but yourself so just hang in there.