Josh
You should post the kind of bike you have and some of the gear you use. Folks who have similar gear will have specific thoughts for you.
So you have a comparison, I'm a roadie who lives in CO. I ride with a local club and rate myself as slightly above average in my age group (39 years old). I climb well, I suck at descent and I'm an average to slightly below average sprinter. I do a lot of organized rides and have done a few races, but not many. I ride a Specialized Roubaix Pro with D-10 components.
I'm sure you'll get (conflicting) replies to this post, but here are my initial thoughts:
1) Make sure your bike fits you. You don't mention if you have a bike, are buying one, etc. Get into your local bike shop and have them take a look at your fit. It's amazing how much pain you can avoid and how much you can improve with some pretty minor adjustments.
2) Get out and ride with a club. If you're just starting out you have no idea what you're strengths or weaknesses are. Find a local club or two and do a few weeks of riding with them. Equally important is talking to the folks in the club on the ride. Let them know you're just starting out and you're trying to figure out what you need to work on. Everybody I have ridden with has been willing to talk about their training programs, what they do well, etc. Plus, riding with other folks is more fun than training alone IMO.
3) Don't try to work on everything on every ride. I purchased the Chris Carmichael training DVDs a year ago and learned a lot. Specifically, CC focuses on specific aspects of cycling (e.g., climbing, sprinting, etc) each workout and touts efficiency in training, not just slogging through hundreds of miles and dozens of hours on the bike. Don't underestimate the value of the easy rest day(s). Since you swam competitively, I'm sure you know how to focus your training.
4) Learn the basics of bike repair. Keeping your bike in tune will make your riding more enjoyable and will save you out on the road if something goes south. Get to know your local bike shop for the big stuff or maintenance you don't have the tools for. They're pros and will keep you on the road. But knowing how to do some of the smaller (as well as bigger) stuff is always good.
5) Keep your bike clean. Chain, derailleurs, frame. Everything.
6) Probably most important is to enjoy the bike. I am a competitive person and enjoy making my riding partners suffer on the climbs 😄 like they make me suffer in the sprints:eek: . Having said that, I believe cycling is supposed to be fun. When I have to talk myself into going for a ride, that's when I'll start looking for something else to do.
I'll post other toughts as they come to me.
DB