Time to get back on track

After a good conversation with a rational person who knows me better than anyone (my boyfriend of almost 3 years and best friend of 7 years), I realized that I know exactly how to eat and what to do at the gym, but I simply don't do it. I get going on a good streak and then conk out and either stop working out for too long or eat something crappy. Throughout my life I've always had a dance instructor to yell at me and keep me going. Now, all I have is me. Unless I feel like spending over $100 on a personal trainer, I have to start kicking my own ass ( | ) haha