Demi Lovato was up way too late yesterday night and just couldn’t get to sleep.

So, the 16-year-old Sonny starlet popped in on her MySpace to thank all her many fans. She writes, “I can’t sleep because I’m so happy. [That] sounds so ridiculously corny but honestly I feel like a new person. 2009 has started off to be the best year of my life which sounds impossible because ’08 was INCREDIBLE! i started a new TV show (WHICH AIRS FEB. 8TH….. AHHH!), I released an album (WHICH RE-RELEASES THIS MONTH TOO :P ), and Meatloaf Wednesday was invented!!

(Read more after the cut…)

“Honestly, I feel like a new person and in the best way possible. Over the past few months I’ve really just changed my perspective on life and it’s really made me mature into a “new me”. It’s weird, I’ve even been dressing more ‘girly’ because I’ve gained a lot of confidence in myself and my appearance. I even have PINK nail polish on my toes which has nothing to do with confidence but I just find it weird because i haven’t worn that since like.. 8th grade… but I’ve just become a brighter and happier person because I’m finally comfortable in my new home here in California, getting more time to spend with my family and I’ve been building strong and amazing friendships with new friends.”

“I think over this next year you all are going to watch me evolve into a new person. and no i’m not ‘changing’ like i promised i wouldn’t in ‘La La Land’…. but I’m growing. Besides teenagers change a million times before they truly find themselves and I’m really beginning to find out more about myself each day.

“So don’t be scared if I start to wear less black or eye-makeup. I’m not changing.. just maturing.. and you all are helping me so much. Each time I meet a fan it boosts my happiness. I wouldn’t be doing any of this without you… without your support… without your loyalty… and without your smiles when I look out into the audience.”