Grass clippings, leaves....it doesn't take 5 years. Get all the leaves you can, dump them in garden, run over them with a mower, till them in. Fish heads, bones from cleaning, etc...all good stuff. Too much chicken manure will make it too hot if you're not careful. A jar of dirt to your county extension agent will tell you exactly what you need.
DON'T put any meat / fat / bone / grease in your compost. Other kitchen leftovers, grass clippings, leaves, shredded newspaper, chicken / rabbit / horse recycled matter works GREAT. The MEAT products work but will greatly increase the odiferous nature of your pile. The biggest contributor to cooking the compost is your dry to moist matter ratio. Too dry add a little water, too wet add some dirt or newspapers.