your short term feelings might not match up with your long term goals.
for example, during my first season of racing, i started doing intervals really early on. i had really no base miles but they felt really good. and i got better very fast. but, as the season wore on, riders kept getting stronger and stronger and i couldn't compete by mid summer.
my next season, i spent 4 full months doing base miles. in the 20 degree temps, i'd be out there riding around in the dark. my body definitely didn't want that! but when it came time to do intervals, i was so much faster. races were easier and i had plenty of room for improvement.
you have to find a balance. strict training via a schedule can be a drag, but not following at least some plan will make you a very average rider.