Thanks for the response. I am sorry I got a little carried away there.
At the beginning level, just let your body tell you what to do. I am serious - listen to what it says to you. I started serious cycling at age 58, about 4 years ago. I loved cycling so much, it wasn't too long before I was doing 20-30 km rides, and in 3 months, after 1500 km's of practice, I did a 7 day 500 km ride over mountain passes. It depends so much on your motivation and interests. BUt, the one caution is overtraining. Your body needs rest between more heavy/hard rides, and what a "heavy or hard ride" is will depend upon your level of conditioning. When you get a "base" of perhaps 1,000 km's, then there are some folks here who can give you excellent advice about the more advanced techniques of training, if you want them. I.e., interval training, nutrition, using a heart rate monitor, techniques of spining - all those kinds of things. Velocipedio is probably one of the best experts on that kind of thing in this forum.
Hey, have fun, and I will try to lighten up a bit. Good luck!!