I am now in my mid 40's upto the age of about 27 I was fitter than a butchers dog and could run all day carrying 80lbs on my back...but for the past 18 years i've hardly done any fitness trainign and my weight has crept up. I am now 224 lbs and I want to get fit and in the process lose about 40lbs.
I now live in southern spain unfortunatly in a valley between 2 sets of mountains so whenever I go for a ride I seem to be climbing (although the ride home is usually exhilarating!).
I've been going riding for about a week initally only a few miles on trails but the last 2 days i went on the road 6 miles yesterday and 10 miles today. The trouble i find is yesterday i could cycle up every hill i came to, today the same hills defeated me and i had to walk the final 25% of one of them.
Today i turned around at 5 miles as i was feeling incredibly tired but by the time I got home I felt i could do it again..and I am now considering doing my 5 mile route again.
I want to try to get a steady routine that i can build on..but now i just seem to be all over the place ..
Ohh and it generally in the 80's when i go riding...
You just have to rest. Most training programs prescribe at least a day of rest between hard days. This can be easy riding or just taking the day off. Most training programs also tell you that you should build a training base which helps you adjust to the volume and intensity of training later on. Most training programs also start out with one hard day a week.
But you're not really training, so my advice to you is to take a day off after a hard day in the mountains. Do some easy pedalling on the trails and get the blood flowing, get air in the lungs.
Somtimes it is better to rest, i also reccomend you to change your training try finding some flat area's to ride. If all you ride is hills then the only thing you will be great at is hills. I think using the gears you may have may ease the pain of climbing. I wish you the best of luck in becoming a better rider and to improve overall fitness .