Think outside the box when it comes to your weight loss and fitness goals. Instead of doing the same boring things like running, walking, push ups, etc. try something fun. Why not take a dance class? There are tons of fun classes you can take that will whip you into shape.
If you dread the very idea of performing multiple sets of chin ups, try looking at it this way: rather than focusing on the effort needed to pull your entire body weight up, think about the effort needed just to pull your elbows down. Surprisingly, this makes the entire workout seem somewhat easier.