I can only ride about 10 miles at a time right now, and I really want to build it up. I have been going about 10 miles all summer. I struggle to build them up because all of the trails around here have giant hills. I have tried pushing and pulling on my clips, and standing on the pedals, and the hills still just kill me. I really want to be able to go farther (my goal is 30) but it seems no matter what I do, I am exhausted and sore after 10. Does anyone have any advice on technique, diet, tips, anything! I am just not losing weight at 10! Thanks for any help.