I'm an avid rider who's been riding for over 10yrs I do road rides but ride mostly off road I'v been riding 4 to 5 times a week most of the time I push my limits up and down and try and spin when riding on the road. I've been feeling tired lately,I rest when needed and eat well so it's not any of that. I was wondering if it would be better to ride more days per week at an easier pace with a day or two at a hard pace. It would give me more saddle time and more miles but would my fitness get better without feeling tired? I already have a very strong base arobic&power.My road rides are 30 miles and my offroad rides are about 12 to 20 miles average with usually technical steep climbs. Any input would be appreciated.