To elaborate; I literally cannot focus on a workout, particularly a cardio routine, for longer than 5 minutes or so. If the best possible wourkout for me were to do 20 minutes of rowing, running, or cycling, I will literally want to kill myself after five minutes. Typically it won't come to that, so I'll just half ass it, call it quits and take the walk of shame home, bothered, unmoisturized, unhappy, out of my lane, unfocused, languishing. This is not due to over-exertion or the overall difficulty of the exercise but I guess some kind of latent inability to focus on any task for longer than the bare minimum.
I guess the simple answer is "Just mix it up, doofus", but when I do that I end up just half-assing even more. What is to be done?
I used to feel the same way until I took up a concentration/meditation practice to take control of my inability to not be bored and suffering 24/7. The real exercise is dealing with the understimulation, and I still have problems with that quite a lot. There was a point in my life where the mere thought of having to DO something that was not at all a fun activity was excruciating. Once you can train your mind to come under control a bit, it is much easier to exercise, which makes it easier to control your mind, and on and on. On the other end, the longer I go without doing it, the harder it is to get back into it.