Hi there, Jeff! Great to see you here. :) Both Aura and Sheep, who are moderators here, pretty much showed you where to go in terms of trading and battling, as well as asking for help or advice on your game. Both the Trade Corner and the Battle Center are great places to get you hooked up on trades with others or battles with your Y game. If you have a bunch of Pokemon to trade away, why not open up a shop? Maybe you have a team you want to test out or battle competitively? Try requesting a battle over there too.
Good luck on doing so, though! You will have a great time, in fact, there are other older members around here so you aren't the only one that's an old Pokemon fan :D See ya around and don't be scared to ask for help. :)