Please, show me how to ride a bike!
I'm not sure how many errors you are looking for but, this is what I got:
My Father and I, have already several states this month.
I really only see one error. Father should be capitalized because Father is a title of a person. I would also say the "I" should always be capitalized but, it looks like you already got that. Everything else seems ok.
Answer:
A wonderful holiday I have had
(A brief description of the holiday )
Last month, we went to Erbil to spend our holiday. I went with my parents, my sister and my two brothers. We stayed at a nice hotel in the city centre. The place was very nice. I like it so much. During the day we used to visit the nice places there. There are a lot of parks and malls to go shopping. We visited Erbil Citadel and the high mountains which are covered with snow. So, I took a lot of photos. In the evening we used to stay in the hotel because the weather was cold. We had dinner and watch TV. I used to play video games till late hour. The best thing about the holiday was the hospitality and the nice treatment of the people. But the worst thing about the holiday was the very cold weather.