Please, anyone (native English?) correct this short story, I'll be very grateful:
(If you own a Mac, I'll give you a free copy of an uber-cool app)

I've fallen in love with Macs in the late 80s after visiting the exhibition called Computer Science in the US Life. It was not love at first sight, but little by little. I liked the Mac logo, I liked the fact that Macs are different from the rest of PCs and at the end I liked they friendliness.
Only 10 years after, when I was studying at university, I got my first Mac. Happy Mac, Finder face, icons - well it was a really friendly and intuitive thing, and I did enjoy it a lot.
Since that time I quit two universities, changed some jobs - I was a courier, an "actor" of mass scenes, a loader and designer. But one thing didn't change - being friendly is still one of the most valuable things for me.
A year ago I've got an idea to create a really nice and friendly software, and started to learn programming from scratch. And here it is, a little thing called *****. I designed it with simplicity and ease of use in mind, and it looks like I'm succeeding in these aims. I really hope it will be enjoyed by many people around the globe, so one day I could realize one of my biggest dreams - travelling all over the world.
I fell in love with Macs in the late 80s after visiting an exhibition called Computer Science in the US Life. It was not love at first sight, but little by little. I liked the Mac logo, I liked the fact that Macs are different from the rest of PCs and at the end I liked their friendliness.
10 years later, when I was studying at university, I got my first Mac. Happy Mac, Finder face, icons - well it was a really friendly and intuitive thing, and I did enjoy using it a lot.
Since that time I quit two universities, changed some jobs - I was a courier, an "actor" in mass scenes, a loader and designer. But one thing didn't change - being friendly is still one of the most valuable things for me.
A year ago I got an idea to create a really nice and friendly piece of software, and started to learn programming from scratch. And here it is, a little thing called ***. I designed it with simplicity and ease of use in mind, and it looks like I'm succeeding in these aims. I really hope it will be enjoyed by many people around the globe, so one day I could realize one of my biggest dreams - travelling all over the world.
Nona, thank you very much!
Is everything else is correct? The style of text? Doesn't it look like it was written by a foreigner?
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nona corrections are good, but incomplete.

Put "user" in front of "friendly" and "friendliness" in all places.

I think you means "paradigm" instead of "logo."

The first sentence has a confusing ending, unless there is a place called US Life. If that is a place, the sentence would sound better in the United Stated, if the "the" in front of "US Life" was removed.

In the second parigraph "studied at the university" sounds better "than studied at university."

Fourth paragraph "changed some jobs: would sound better as "changed jobs several times., or changed jobs many times." I believe the term actor in mass scenes would be written "a standin in background scenes"

Last paragraph. leave started to out of the first sentence

I'm succeeding should read I have succeeded.

Last sentence, "globe, so one day I could" should be "globe, so one day I can"

Other than that it is a well written piece. I'd really like to see that
software; In english of course.
My English teacher told me that in formal written work, you should avoid contractions.

For example:

"I'm" should be "I am"

because it seems more formal and that is what you are looking for right?

Hope this helped a bit. If you even still look at the post since it was a long time ago.

It is probably too late.

Oh, well. Hope it helped.
I've fallen in love with Macs in the late 80s after visiting the exhibition called Computer Science in the US Life. It was not love at first sight, but little by little. I liked the Mac logo, I liked the fact that Macs are different from the rest of PCs and at the end I liked their friendly manners.
Only 10 years after, when I was studying in university, I got my first Mac. Happy Mac, Finder face, icons - well it was a really friendly and intuitive thing, and I did enjoy it a lot.
Since that time I quite two universities, changed some jobs - I was a courier, an "actor" of mass scenes, a loader and designer. But one thing didn't change - being friendly is still one of the most valuable things for me.
A year ago I've got an idea to create a really nice and friendly software, and started to learn programming by scratch. And here it is, a little thing called ***. I designed it with simplicity and ease of use in mind, and it looks like I'm succeeding in these aims. I really hope it will be enjoyed by many people around the globe, so one day I could realize one of my biggest dreams - travelling all over the world.
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