I use RideWithGPS and have a paid subscription for it. I also go to GarminConnect with a free account because there are some things that it shows that I want to know sometimes. I have a Strava free account too, but Strava has always been the least of my favorites. For some reason I liken it to AOL. However it gives everything the other do. I just don't quite mesh with it though so I'm not going to fault you no matter what you choose.

There are also programs like Golden Cheetah and such that you can use.

If your riding is indoors then Zwift will be the one to keep you motivated for riding 6 days a week or what ever you wish to do. For riding outdoors a bike club or just a lot of friends that like to ride on different days will help. It's hard to turn down a ride when someone asks you to go riding with them.