Corrections in red.  Stylistic suggestion in blue.

About Serving in the Navy

I've recently come from Murmansk, where I served on the aircraft carrier Admiral Kuznetsov. The city is in the north of Russia, but I didn't feel cold, because usually I was inside the ship.  Unfotunately, I wasn't lucky enough to go on a sea voyage [1] because my ship was being repaired. But I had a lot of free time. I read, listened to music, and talked with other sailors. I like to work on computers, and my commander put me to work with documents. Twice a week we cleaned the passageways, heads, and sleeping quarters. [1]  We were allowed to use phones three days a week only, but everyone still had phones and used them when the officers weren't looking, so that the phones wouldn't be confiscated.  I was in the Navy for a year, and I was glad to come home. Now I have freedom, I can walk, I don't have not to wear a uniform, and I have the oppotunity to socialize with girls, etc.

[1]  In the armed forces, sometimes different words are used than in civilian life.  In the Navy, they say "voyage" or "sea voyage" instead of "journey;"  "passageway" is more commonly used than "corridor"; "head" instead of "toilet" or "restroom"; and "sleeping quarters" for the place the sailors sleep, instead of "room."  Individual private sleeping quarters for senior officers may be called "staterooms."