As far as I remember, It may a couple of years ago. - As far as I remember, It may I started jogging a couple of years ago.

I started have a jogging. - I started have a jogging.

Because my doctor recommended it to reduce the depression symtomps. - Because my doctor recommended it to reduce the depression symptoms symtomps.

It was very helpful to relieve my stress and refresh my mind. - Good Sentence 

I used to have a jogging twice a week. - I used to go have a jogging twice a week.

When I first joged, 30min of jogging was very difficult, - When I first jogged, 30mins of jogging was very difficult,

but after serveral times of trying I adopt about it and continued to it for about 1hour. - but after serveral times of trying I adopted about it and continued to it for about 1hour.

But Thesedays I don't do that. Becuase I feel exhausted after jogging or knee-pain. - But Tthesedays, I don't do that. Becuase I feel exhausted after jogging or knee-pain. 

So I changed my mind to ride a bicycle. - So, I changed my mind to about jogging and decided to ride a bicycle.

It is very helpful to reduce my back-pain. - Good Sentence 

I'd like to ride a bicycle at the bike-track in the park which is located in near my house. - Good Sentence 

It's my story about jogging and why I changed my mind. That's all~ - It's This is my story about jogging and why I changed my mind. That's all~