I haven't slept well recently,. I usually go to bed at 11.:00 PM, but unluckyfortunately I can't fall into asleep quickly ,. maybe too many things confused me in the days. I haven't slept well recently. I usually go to bed at 11:00 PM but unfortunately I can't fall asleep quickly. maybe too many things confused me in the days.

Except for the last sentence in the first paragraph which I couldn't understand what it was supposed to mean, majority of your words were used correctly. Just corrected some grammar and words.

I haven't slept well recently, I usually go to bed at 11.00 PM, but unlucky can't fall into asleep quickly , maybe too many things confused me are on my mind these days. I haven't slept well recently, I usually go to bed at 11.00 PM, but unlucky can't fall asleep quickly, maybe too many things are on my mind these days.

I will do some outdoor exercises like running and walking to improve my overall healthy. I will do some outdoor exercises like running and walking to improve my overall health.

Replaced healthy (an adjective) with health (the noun). I corrected it with overall health because you were talking about having bad sleep in your first paragraph and I assumed you are talking about improving your sleep with exercise.

I willould like to do some outdoor exercises like running and walking to improve my healthy. I would like to do some outdoor exercises like running and walking to improve my health.