Thanks everyone for writing and letting me know I am not alone. I understand your struggle and how frustrating it feels, because I want to be in that All phase all the time when it comes to good habits like exercising, cleaning the house, staying on top of chores or bank work etc.

@Jennifer1967

I will read up on CBT ( Cognitive Behavioural Therapy - just googled it)
I am hearing about this for the first time.

@UpDownAround

Wow! completing a half-marathon in 2:08 can be a high in itself, but understand the frustration where there is an injury that comes with it because you are pushing yourself too soon.

When I first took up running on a treadmill, I was also experiencing what people call as a runner's high and overdid it that I had hairline fractures on both my shins ( called shin-splints) which led to 6 weeks absolute rest for healing.

And in that 6 weeks I couldn't run or cycle, only swimming was allowed and I was never a swimmer or comfortable in a swimming pool, so it was a downward spiral from stopping working out to back to bad habits and gaining weight and going back to depression.

Later on, I learned to pace myself and not over-do the running and then got to doing running outdoors and the best I have done so far is a 5K at 25.27 minutes. During that run, I had to once stop to tie my shoelaces, else I am convinced I would have been sub 25 minutes

But from there I have now completely quit running and I see others who have built up to 10k and half-marathons.

It's also extremely frustrating because it feels like I can't be consistent at one thing, any good behavior I exhibit appears only like a phase to me because eventually something will happen and I will go back into depression and nothingness phase.