mMy oOldest mMemories 3/3

We capitalize the first letters of important words in titles.

3. I never wished to hurt you, Mickey.

I was maybe six or seven years old and I was used to enjoying the regular carousel ofin my town once a week.

They looked definitively looked older and they came here asin groups.

To my big confusion, I realiszed that the Mickey's tail now stoodwas now into my hands, detached from the rest of its body.

We spell it "realize" in the US.

At this moment, I was sure that I would (/will?) be grounded because I apparently broke Mickey Mouse.

It's "would" because you're hypothesizing which makes the sentence subjunctive tense.

After the carousel stopped, my parents explained to me that all of this was on purpose, that the tail was supposed to come undone that way, and that I actually won the game.

They were even sure that the "puppetwaver" made it easier for me to reach it, because I was the tiniest little girl there andso I deserved a chance to win a free round of carousel ride.

But I was too shookaken, however, to realisze how lucky I was: I rejected the opportunity andso the only thing I won is this remarkable memory.

Very cute.

P.S. Apparently, this funny game is nowadays is fortunately forbidden nowadays.

First of all, it's for security reasons : Children could hurt themselves trying to catch the Mickey!

Also, I am sure that the "funfair" (stalholder?) owner of the Carrouselcarousel owner did not pay any royalties to WB and would be fined for this terrible crime.

So now he cannot traumatisze any more little children, and I amwas just born a bit too early to be spared this terrible experience.

I was maybe six or seven years old and I was used to enjoy the regular carousel of/in my town once a week.

"I'm used to" in the present but "I used to" in the past

But one day, my parents brought me to a different one, a bigger and faster one.

It is grammatical correct, but you can do better for the "flow":
"[...] me to a bigger and faster one"

They looked definitively older and they came here asin groups.

"come as" I think is mainly used for "identity" or something like that.

They were all messing around by trying to reach a Mickey Mouse puppet that an adult was waving at the tip of a fishing rod ahead of us.

Maybe you should use "above our heads" instead of "ahead of us"; but maybe I base my idea on hazy memories.

To my big confusion/surprise, I realised that the Mickey's tail now stood intowas now in my hands, detached from the rest of hits body.

"into" is used for non-static actions

At thisat moment, I was sure that I would (/will?) be grounded because I apparently broke Mickey Mouse.

"would" is correct because it indicated a future in the past.
I suggest "kill" instead of "break" to indicate that you really thought you killed him, but that's up to you.

After the carousel stopped, my parents explained to me that all of this was on purpose, that the tail was supposed undoto come off that way, and that I actually won the game.

"undo" is used when you've performed an action and you "undo" it, that means you cancel it, you do something so that it's like you've never did the first action.

But I was too shookcked to realise how lucky I was: I rejected the opportunity and the only thing I won is this remarkable memory.

P.S. Apparently, this funny game is nowadays is fortunately forbidden.

First of all, for security reasons : Cchildren could hurt themselves trying to catch the Mickey!

Also, I am sure that the "funfair" (stalholder?) owner of the Ccarrousel did not pay any royalties to WB and he would be fined for this terrible crime.

So he cannot traumatise more little children no more, and I am just born a bit too early to be spared this terrible experience.

mMy oOldest mMemories 3/3

I was maybe six or seven years old and I was used to enjoy the regular carousel ofin my town once a week.

They looked definitively older and they came here asin groups.

To my bigI was very confusion, Ied to realised that the Mickey's tail now stood intowas now in my hands, detached from the rest of hits body.

"Big confusion" is not natural in English.

At thisat moment, I was sure that I would (/will?) be grounded because I apparently broke Mickey Mouse.

"Would" is correct.

After the carousel stopped, my parents explained to me that all of this was on purpose, that the tail was supposed undoto detach that way, and that I actually won the game.

They were even sure that the "puppetwaver" made it easier for me to reach it, because I was the tiniest little girl there and I deserved a chance to win a free round ofn the carousel.

But I was too shookcked to realise how lucky I was: I rejected the opportunity and the only thing I won is this remarkable memory.

P.S. Apparently, this funny game is forbidden nowadays is, fortunately forbidden.

First of all, for security reasons : Children could hurt themselves trying to catch the Mickey!

Also, I am sure that the "funfair" (stalholder?) owner of the Ccarrousel did not pay any royalties to WB and would be fined for this terrible crime.

So he cannot traumatise more little children, and I amymore, but I was just born a bit too early to be spared this terrible experience.