Finally, I want you to sign up for an introductory session with a personal trainer at your gym. In most cases, this should be free.
The purpose of this is to discuss your fitness goals with them, and design a program that will speed you along your way to having the body of a goddess. This may include your fitness and toning classes, but they will also set you up with a series of routines to be done with the weights and fitness equipment in the conditioning room.
Tell them that you have agreed to start doing nude modeling for a local art class, and that you want to make sure you look your best. This is a little bit of a lie, but it will get you the results you want.