Woo!! First things first! Congrats on committing to making a change! I like your attitude! I know for me I was crazy and went straight to starting with Insanity, and being extremely scared, and excited about it, and I'm glad I did

One thing to remember is that even though you are working out Nutrition is going to be a big factor! So make sure to dial it in, and ask any kinds of questions you may have here, or start working with your coach and some FB groups for accountability! And log your workouts into the Super Gym on here, and take those before and after pics and measurements so you can get your shirt after!
If you would like I have a FB group you can join in on, we do good about daily posts, and keeping each other motivated, we're one big fitness family! I'll send you a buddy request and if you'd like just let me know!
-Daniel C.