Share 'How to add extra distance to my drive...?'

How do I make my disc go further than I throw it right now? It goes far enough for my local courses, but when I traveled to Kalamazoo..I was absolutely screwed! Those holes are gigantically long for me, looking on the PDGA site, my statistics make me a recreational player. So how do I go about doing this? Buy heavier discs? Weight Train? Currently, I'm 13, throwing 169-174 discs, and throwing…