I don't have a teenage daughter, I have 2 boys. But I remember being moody and withdrawn when I was her age. A lot of it is "that age", unfortunately, when your body is changing daily, you want to be treated like a grown up, but you're really still a kid inside. Instead of her texting friends, can you invite a friend over once or twice a week for company? And since you're out of work right now, take her for a girls day out, maybe a manicure at a spa for a real treat. Go horseback riding, mountain biking, kayaking, or whatever outdoor activity she would enjoy. This would help with her self-esteem. I agree that she shouldn't be staying up late and sleeping during the day - you could use her help around the house. Does she earn an allowance by doing laundry, vacuuming, dishes, ?? Cell phones and texting costs $$, she should have to pay for that stuff herself. Kids today have so many luxuries that they don't consider luxuries, but necessities. They are LUXURIES!
What about her self-esteem? Mine was very low at that age. My parents did their best to help, but there were bullies at school who whittled away at my self esteem almost daily. Do you think that's happening with her? She might not tell you because it's embarassing/unpleasant.
Tell her daily that she is beautiful and that you're proud of her, etc. Buy her some tasteful makeup (Avon of course!), French braid her hair if she has long hair, and teach her how to look her best, and SMILE!!! Everyone looks prettier when they smile! Put a note in her lunch box once in a while when school starts back up again, like "I love you and I think you're awesome, love Mom" Good luck! I'll be into the teen years very soon with my boys. I think my problems will be fighting off the girls!