Clause 1: "A place where you do everything but no one complains of anything". In your explanation you say "you can do anything" Say it in your sentence. "A place where you can do everythiing but no one complains of anything." Your form is correct.
Clause 2: "And when I was 20 year-old, the idea of owning private room had been being my desire. I wish I could have private room within 1 year."
We use "And when I was" in conversation. It is not formal English. "owning private room" Use an article here. You you have an object noun related to a verb. So you need an article indicate the noun. "private room" is any private room, not a specific room. Use the form "owning a private room" "could have a private room". Only one tense correction "had been being my deisre" Eliminate being, "had been my desire" is correct. Your phrase "within 1 year" is good. You should use one instead of 1.
Clause 3: "I usually use computer all day. In the morning, I get up, open pc, and then leave it out untill to mid night." Your use of "use computer all day" is correct. For the duration of use, people will assume you use it "24 hours per day" even when you sleep! "leave it out untill to mid night." Midnight is the correct noun for 12 AM during the night. Until is a preposition explaining time duration. Something begins now, stops at the time. "leave it out until midnight" is the correct phrase. There is difference in culture how one handles electric devices - lamps and computers. In one country, we say open and close the light. In USA, the expression is turn on and off the light. Use the appropriate form for your reader's country.
Clause 4: "The laptop is usefull in case I need a computer in somewhere else." We use the preposition phrase "in another place". Somewhere is itself a preposition. You can write "in case I need a computer somewhere else"
I can correct your other examples later. For now I must attend to another need.
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