I do a fair amount of volunteer work in our community and I cannot tell you how many times I have been driving to whatever place, just totally dreading it, wishing I did not have to go, wishing I could do something for myself or with my family, wondering why I ever volunteered, trying to think of some excuse/reason to turn away....but as SOON as I get there and get to work, those thoughts are gone and I have never once left the event/place and regretted it or felt that I had wasted my time.
Same is true for training and workouts in general ( and life ) the hard part is the mental dread leading up to it--the hard part is actually making the decision to do it and then show up--once you have made a determined decision to show up---the rest is easy ( relatively speaking) I cannot tell you how many times I have come home knowing that I have a workout scheduled. I am hot, tired, etc. I know the garage is going to be hot. I know I have to move about 9 bikes and a dog crate out of the way just to be able to set up my lifting plaform, I can think of a dozen reasons to NOT train...and somehow I end up in the garage and as SOON as I get started, the mental dread is over and I walk out 110 minutes later with the best feeling in the world.