People tend to misuse intervals because they don't understand the concept of intervals. So when someone asks what they should do to get faster, they say do intervals! But you have to look at the whole story. From my perspective, it looks like you need rest and structure to your training. Intervals is not on the plate for you right now, especially if one interval makes you winded. Under other circumstances, I would say your endurance is off, but with all the mileage you've done, endurance is not necessarily the problem. It's time off the bike. It's taking it all-or-nothing for your rides for so long that your body is finally just slowing down and letting you know it's time to take some time off. Serious time off from my thoughts, really. Then when you come back, you start sloooooooow and build. It's like laying down the foundation for your house. If you build the house without the foundation, it may look pretty and nice from the outside, but it's just a matter of time before it falls. If you lay the roots and set down your foundation, your house is strong. You need to make that house stronger, that's all.

Koffee