svcyclist

Hey, I'm 15 and i'm wondering if i should toss in some intervals into my workout. i've been training since early May and I ride 5-6 times a week totaling about 100 miles each week (I avg. 17.5mph over rolling terrain w/ light headwinds). Additionally I have one climbing day each week. I'm not on a cycling team/club and have no coach, but I'm planning to join a team next year. So can anyone give me some advice on interval training b/c i've never tried it before. I'm open to all suggestions!

Thanks,
Brian