Does anybody else find having a teenager really stressful?

I have a 17 year old daughter who I love to bits but my God does she stress me out. She's mostly great to be fair to her but I have to nag her all the time to get her to do anything. To her credit she did have a part time job but gave it up with my blessing as she was having to work till 2am and it was affecting her college work but she's done nothing about getting another one. In the meantime she has run up two huge phone bills which I'm having to pay (the deal was, while she's at college, I pay half the tariff and she pays the other half plus any extra if she goes over her free minutes) as I need her to have her phone so she can ring me if she needs me to pick her up from college etc. Plus I don't like her not being able to contact me in an emergency. And now she has started drinking lots and smoking which I now is normal teenage behaviour but everything is such a battle at the moment and she's constantly rolling her eyes. Is it just me??