Um even when I was a tiny built person whenever I seen a bigger person working out or riding a bike I felt proud of them for being one that is willing to make a difference in their lives. My friend for example is bigger and has been saying for two years she is going to do something and never does. What weight she lost one summer she gained all back and then some over the next year. She isn't happy with her weight but is also not doing anything about it so... Don't worry about what everyone else will think but of how it will make you feel inside and out!!! On top of that look how far you have already come, you're doing Wonderful!