I live in Duluth as well and I use to go to LA Fitness off sugarloaf/120. Xtreme nutrition is a store in the same shopping center, go in there, get oxevol and a bucket of Methyl-Efx (blueberry). Take these 2 products, work out 4-5 days a week, and I'm tellin you right now you'll make great gains in less than a month. It's cheating, but it works.

I personally gained about 15 lbs of muscle in 3 weeks. Talk to the guys in that store about it, they won't steer you wrong.