Unless you're dedicated to learn how to breed egg moves (and possibly IVs as well) and EV train properly, you can instead use a battling simulator like Pokemon Showdown! to learn how to battle competitively first. Read the
Introduction to Competitive Pokemon article on Smogon and continue from there. Though I wouldn't recommend making your own team right off the bat, even though it's very tempting. Borrow a few teams from Smogon's RMT forum first to get yourself familiarized. Once you're familiar with synergy, switching, EVs, natures, and the like, you can dabble in making your own team.
I am very dedicated! This is now my roadmap to Pokemon
-Collect all Pokemon
-Build a Competitive Team and test out on the Battle Maison <-
-Fulfill the current orders for my Trade Shop
-Take on the Random Regional Pokemon challenge
I want my team to be the best I can. So I'm looking into breeding the right moves for my team as well as the IVs and EV training.
What is the IV and how does it work?