"I suck at gym battles. Any advice?"

#PokemonGO: Hey guys, I'm a level 31 player that has only just started battling gyms. I was very content hunting/collecting but now I'm bloody bored so gyms seem like something to do.I have a pretty good collection of mons from high IV Dragonites and Snorlaxes to the mid CP mons with good movesets that I see people mention in posts for prestiging etc.When I try to prestige I can never seem to beat them with my mon's at 50% CP. I copy the movesets from other posts but seem to just get destroyed. Do I suck that bad or am I missing something?Two things that dont make it easy are the fact that my area is pretty much all level 10 gyms full of 3000+ CP Laxes and Dnites and also I am on Team Instinct.Not sure if I just need more practice dodging but I seem to just go through the revives and potions so quick that I have to wait a couple of days to stock up so I can try again.Thanks guys any advice is very much appreciated. via /r/TheSilphRoad http://ift.tt/2kxgf7H