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I feel annoyed when I try explain a very simple thing different people for example where is a new shop with clothes and they still thereof don't understand. I really don't like to explain to people several times the same things . It is very irritating.
I feel irritated when I'm studying for a test all day and I am getting a bad grade. I was very angry and tired after all day at school .
A year ago, I went with my family to my aunt for Christmas. That day is my birthday. We got different, perfect gifts. Unfortunately, Nobody paid me birthday wishes. I was very angry. I tried not to show my emotions. I didn't want to my family to know that I'm mad at her.

explain sth to sb
want sb to know

to explain
to my aunt's /place/, np
Szyk w niektórych zdaniach pokręcony:)
+ inne błędy

A była by szansa ,żeby pokazać mi jakie to są błędy? bo jak tego nie zrozumiem to będę ciągle i ciągle je powtarzać :(

Po pierwsze:
Masz 'ciekawy' nawyk pisania slow w środku zdania z WIELKIEJ litery, co może być czasem poprawne, ale nie w twoim przypadku;
Raczej nie używa się czasownika pay w kontekście zdania tak jak ty to ujęłaś.
family nie można zastąpić zaimkiem her tak jak w polskim;)