A light

Recently, A light was installed in front of my room.
It's very bright!
I am happy, but it is too bright.
Recently, It is warm.
So, Many bugs are active.
They are gathered in bright spot.
And, they were gathered at my room's door.
I am afraid for the bugs make an invasion upon my room.
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Toshi , please have a look at how I might express your  same thoughts and compare. 

Recently, a light was installed  outside in front of my room. It's very bright. I like it a  lot but it's too bright. The weather has started getting warmer so the bugs have started coming out. Now they seem to be attracted to the new light near the front door. I am afraid that the bugs will start invading my  room every time I open the door. 

A light

Recently, a light was installed in front of my room.
It's very bright!
I am happy, but it is too bright.
Recently, It is warm.
So, many bugs are active.
They are gathering( They have gathered) in a bright spot.
And, They were gathered at my room's door.
I am afraid of for the bugs to make an invasion upon into my room.

A light

Recently, a light was installed in front of my room.
It's very bright!
I am happy with it, but it is too bright.
Recently, it is warm.
So many bugs are active.
They are gathered in the bright spot (or light).
They were gathered in front of my room's door.
I am afraid that the bugs will invade make an invasion upon my room.