Please correct my sentence, if there are any mistakes wrongs.

And If there are the expression better than mine, please recommend :) Also, please recommend any expressions that are better to use.

The thing that I do to get rid of stress is running alone around river near by my home. I really like that. I run alone again today.
I haven't received the motivations in my major for a quite long time. But, today, I got strong motivation.

I run alone along the river by my house to get rid of stress. I really like that. I will run alone again today. 

I haven't had much motivation to study for some time now. Today, though, I got some strong motivation. 

잘했어요! ;_)

Please correct my sentence, if there are wrongs.

And If there are expressions better than mine, please recommend :)

What I do to get rid of stress is run alone around river near by my home. I really like doing that. I ran alone again today.
I haven't been motivated in my major for a quite long time. But, today, I was strongly motivated.