Exercise should be fun
I think that if you want to be fit you need to enjoy exercising. If you hate exercising a really short gym session seems like forever but if you enjoy it time flies and you train for ages.
Like yesterday I went for a 10 lap (4km-ish) run of the oval near my house and found some woman training there also. She had a heap of witches hats, weird tubes to throw around and all sorts of gear. I rocked up barefoot with my phone for music.
I got straight into it, I pumped my music and it psyched me up enough so I could run hard around the track. I then stopped after the lap, had some water and waited for the next breakdown in the song. Taking that rest after every lap was important because it meant that I wasn’t in “pain” the whole time, so I enjoyed the run, rather than spending it dreading how much more I had to go. The 10 laps seemed like nothing because I enjoyed it. But the other lady sat in her car for half an hour before starting her training and then didn’t even look like she wanted to be there.
A reoccurring thing I have found in life is that quantity is almost always more important than quality. Her training was of high quality, with more aerobic and agility training, while mine had a rest every couple of minutes. But I did more, and I will probably go back and do it more often because I enjoyed it. That compounds the benefits of my training against hers, meaning I get more out of it in the long-run.
With exercise (and any skill development) it doesn’t really matter what you do, as long as you do lots of it. And the only way to do lots of something is to enjoy it.