I will start lack of sleep days

From this week to next weekend, I will be a sleepy person.
I need to watch TV in the middle of night.

Why do I need to watch TV in the middle of night?
The Wimbledon Tennis starts and matches are broadcast in the middle of night, since there are time differences.

I like watching tennis, especially Wimbledon Matches!
I've watched it on TV since I was young.
Tennis player's performance influences me.

But actually to say, I can not play tennis.
I can not hit the tennis ball well. It's difficult for me to hit it into the　other end court.
I am just audience.

Hello, Kaori. I have made a few amendments to your text to make it read better. Players' is the plural form whereas player's just refers to one player. Sorry, it's no consolation to you, but I am able to watch the games in the afternoon.  

I will suffer from (start)lack of sleep (days)

From this week to next weekend, I will be a sleepy person because I need to watch TV in the middle of night. Why do I need to watch TV in the middle of night? The Wimbledon Tennis Tournament starts and matches are broadcast in the middle of night, since there are time differences. I like watching tennis, especially Wimbledon Matches! I've watched it on TV since I was young. Tennis players' (player's) performance influences me. But, in fact, (actually to say,) I can not play tennis and am unable to hit the (tennis) ball well. It's difficult for me to hit it into the other (end) court. I am just a spectator (audience).

I will start lack of sleep days

From this week to next weekend, I will be a sleepy person.
I need to watch TV in the middle of night.

Why do I need to watch TV in the middle of night?
The Wimbledon Tennis starts and matches are broadcast in the middle of night, since there are time differences.

I like watching tennis, especially Wimbledon Matches!
I've watched it on TV since I was young.
Tennis player's performance influences me.

But actually to say, I can not play tennis.
I can not hit the tennis ball well. It's difficult for me to hit it into the　other end court.
I am just audience.

Hello, Kaori. I have made a few amendments to your text to make it read better. Players' is the plural form whereas player's just refers to one player. Sorry, it's no consolation to you, but I am able to watch the games in the afternoon.  

I will suffer from (start)lack of sleep (days)

From this week to next weekend, I will be a sleepy person because I need to watch TV in the middle of night. Why do I need to watch TV in the middle of night? The Wimbledon Tennis Tournament starts and matches are broadcast in the middle of night, since there are time differences. I like watching tennis, especially Wimbledon Matches! I've watched it on TV since I was young. Tennis players' (player's) performance influences me. But, in fact, (actually to say,) I can not play tennis and am unable to hit the (tennis) ball well. It's difficult for me to hit it into the other (end) court. I am just a spectator (audience).