Hi! Can you give me any advice on I can improve my entry and writing skill? All your tips are valuable to me!
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I don't agree with the statement, 'members of my family are my friends'. I spend a lot of time with my relatives but I can't say that my father and mother are my friends. It possible is related that I one child in our nuclear family. (I don't understand what you are trying to say here, but I think you are trying to say you're an only child. If so, then you can say. 'I am an only child.' or I come from a family where I am the only child.') 


If I had siblings, I might say that my siblings are my friends.  A friend is someone I can discuss anything with.  (When you're talk to someone it's ok, although not correct, to end your sentence with the word, with.  It's not grammatically correct but everyone does it and everyone understands it.  You could restructure your sentence and say something like, 'With friends, you can talk about anything.')

I cannot discuss everything with my parents since my relationship with them is different than with a friend.  For example, I cannot discuss my sexual life or parties with my parents. By the way, friends can turn into acquaintances or worse, enemies. Parents don't betray you and are always with you. Of course there are exceptions to the rule, but this is usually the case.  In my opinion, there is a distinction between friends and family and if we keep this distinction, everything will be in its place.