im 21 and im new to cycling i have this bike, yes it is from walmart http://www.walmart.com/ip/Schwinn-700c-Men-s-Crossfit-Road-Bike/19582526, but i love it and its perfect for me right now, i first got it because it my means of transportaion besides the bus, im a college kid, but i have started going on longer bike rides, about 12-14 miles, and i really enjoy it. so i was wondering, about the clothes, i see people have them and i just thought they were a waste of money, but ive been reading, and they are not lol, but i was wondering, i have a pair of strech yoga pants, kinda like under armor kind of thing, will that work just the same until i am able to get some, hopefully here in the next few weeks, hopefully? or should i just wait? do i really need cycling shoes? sorry im new to all this, any advice you can give me about anything would be great, thank you in advanced oh and right now im riding 12-14 miles at a time, do you think if i pushed myself in 8 months time i could be riding 30 miles at a time or is that unrealistic?