I was twenty-two years old and I just broke-up with my ex -boyfriend.

At the same times, I left my job.

Therefore, I return at thed to my humble beginnings: my mother's home.

It was like a big regression and it was really hard to me, because I lived alone since myI had been seventeen years old.

So, I decided to realize one of my biggest dream : go alone ato the other side of the world, in: New Zealand.

At worst, I will dead it there and, but I don't care, because I'm dead anyway.

At best, I will learn a lot of thing,s about life and myself.

Result : I'm alive so....

At the same times, I left my job.

Therefore, I return ated to the beginning: my mother's home.

It was like a big regression and it was really hard tofor me, because I lived alone since my seventeen years old.

So I decided to realize one of my biggest dreams : go alone ato the other side of the world, in New Zealand.

At worstWorst case, I will diead there and I wouldon't care, because I'm dead anyway.

At best, I will learn a lot of things, about life and myself.

I was twenty-two years old and I just broke up with my ex boyfriend.

At the same times, I left my job.

I told myself:, "I quit one guy, I can quit two!".

Therefore, I return ated to the beginning: my mother's home.

SadnessI was so sad.

Sadness would be fine for poetry but grammatically it doesn't work.

It was like a big regression and it was really hard to me, because I had lived alone since myI was seventeen years old.

At this moment, my self -esteem and self -confidence were not far from zero.

So I decided to realize one of my biggest dream :s, go alone ato the other side of the world, in New Zealand.

A great choice! In Aotearoa New Zealand we spell "realise" with an "s".

At worst, I will deadould die there, and I doidn't care, because I'm felt dead anyway.

This sentence loses the past tense. "Would" is the past tense of will, but also at this point you're discussing your thoughts before going, so this is a hypothetical past.

At best, I willould learn a lot of things, about life and myself.

RThe result :? I'm alive so....

You like colons! Me too.

It was my best trip ever, and next year, I startwill travel again for one year.

This sentence is a little unclear? Are you going back to NZ again for one year, or travelling alone again for one year. I'm not sure.

I was twenty-two years old and I had just broken up with my ex boyfriend.

At the same times, I had left my job.

ThereforeSo, I return at the beginning: ed to my origins: my mother's home.

or "I had to restart from the beginning: at my mother's home"
I think it sounds weird because a "home" cannot be a "beginning," it can only be a place where something began

It was like a big regression and it was really hard tofor me, because I had lived alone since myI was seventeen years old.

I would drop "like a" from "like a big regression" in writing, but it's normal when speaking

At thisat moment, my self -esteem and self -confidence were not far from zero.

"that" is better since the moment is far away from your current situation, whereas "this moment" sounds like you're talking about something currently happening

So I decided to realize one of my biggest dream s: go alone ato the other side of the world, into New Zealand.

At worst, I will deadould die there andbut I doidn't care, because I'm was dead anyway.

change to past tense

At best, I will learn a lot of things, about life and myself.

It was my best trip ever and next year, I startwill go back again for one year.