All three of mine when they were 13 - I though I'd got it made, they were hormonal but lovely.
Summer after their 14th birthday - they all turned into nightmares! Grew boobs, discovered boys and wanted to hang out in the local park thinking they were grown up and knew everything.
It was like I was on a countdown with my youngest lol. School broke up the summer he turned 14 and away he went, like clockwork.
Once piece of advice, actually 2.
Pick your battles and figure out what consequences are effective.
An example...
DD1 - "if your're late home you won't be allowed out for a week". DD1 then makes a decision as to whether staying out late is worth staying in and if she had no plans for the weekend would stay out as late as she dared and take the consequence.
Learnt my lesson with DD2 and never offered up the consequence beforehand.
"If you are not home on time there will be a consequence".
She'd be late home (they always are, especially in the summer) and I'd tell her that she had a consequence. Come Friday night when she was getting ready to go to the music night at youth club, or Saturday afternoon when she was leaving to go to the cinema with her mates I'd pipe up.... "Ah, about that consequence". She never knew what was coming so she couldn't figure out if it was worth being late or not.
DS1 - never grounded him because he would drive me fucking insane or just go out before I got home from work, so for him, I'd take the Wii and PS controllers to work with me.
I was more relaxed by the time my youngest hit the teens and it made my life a lot easier.