I open the door to the first room. I look for the switch, the light turns on. The walls are red in colour and the curtains are blue so thick that not a single light can peep through.

how can i improve this paragraph??? please help

You need sentence variety.

http://grammar.ccc.commnet.edu/grammar/sentences.htm

You need to fix any run-ons.
http://grammar.ccc.commnet.edu/grammar/runons.htm

It is very wordy. Cut out all the words.

Why is opening the door important? Why is the light switch important?

Why is the thickness of the curtain important?

Because I don't have context, I cant tell, so if they are important, then

The first room, upon opening the door, revealed blackness, no light, no windows. I struggled for a switch. When the lights were on, the room flashed bright red walls, and deep blue curtains on the windows, so thick that no light had entered from outside.

Be expressive, say what you need to say, with vigor and enthusiasm.

DONT COPY WHAT I WROTE.

so to improve it i could use more complex sentences and a range of vocabualry or? And would this paragraph be ok:

i walk vigilantly to the first room, looking around me if there is someone coming behind me. open the door with great care and let me palm slide across the wall to look for the switch, the light turns on. the walls are red in colour, i touch the silky thick curtain that is blue and it is thick that it doesnt allow light to peep through.
can you pleaase check if this is a better paragraph.

please read the above paragraph and check if it s is correct and if any changes need to be made

Start with correct capitalization. Then re-post.

http://grammar.ccc.commnet.edu/grammar/capitals.htm

sorry did not see the mistake but in the whole is the paragraph much better than what it was before?

It's more detailed and varied, yes. You should read it aloud to someone to catch other things.

Be sure to use correct capitalization before re-posting.

ok thank you for your help

You're welcome.

One thing my grandsons (ages 19 and 16) are learning is when to use "text speak" and when to use formal English. All students who want to do well in school, whether it's high school or college, need to remember these things. The no-caps thing is fine when you're texting friends, tweeting, and posting on Facebook or whatever. But for academic purposes, you need to remember and practice standard English conventions. It's that practice, practice, practice that will stand you well in the future.

To enhance this paragraph, you can focus on making the description more vivid and engaging. Here's an improved version:

As I cautiously turn the doorknob, the creaking door swings open, revealing the first room. My eyes quickly scan the dimly lit space, searching for salvation from the darkness. Suddenly, my hand finds the switch, and with a click, the room is instantly illuminated by a comforting glow. The walls, painted a deep shade of crimson, exude a sense of mystery and passion. Against them, the vibrant blue curtains hang, so dense that they create a sanctuary where not even a sliver of light can penetrate.