When I was little, my parents used to praise my drawings, but never anything that I wrote, which is what I most wanted praise for, because I wanted to become a novelist. They also dropped hints about how all great writers in my country have starved, unless they happened to come from very rich families, and they have made it quite clear that writing cannot bring anyone any money and that I'd need a full-time day job. This was disheartening to the point of making me suicidal, until I realized (in my twenties, after several suicide attempts and years of depression) that they were wrong and that there were writers out there who were making a living out of writing. I am very far from being able to support myself out of writing, but at least now that I believe that's humanly possible, I have a goal to be striving for, and I have some hope, and that has helped me out of my depression.
Also, this is not from when I was a child, but at some point (in my twenties, I think), I showed my mother the first chapter of a novel that I was working on (in Romanian). She had a good laugh while reading it, then she told me that she had enjoyed it, and that she wouldn't mind reading more if I want to write more, but that I must absolutely not ever publish it, because it is too controversial from a political point of view (it was a Harry Potter parody, not a political essay!) and she does not want my name, and therefore her name, associated with anything like that. After that, I was unable to write for several months. I'm still unable to write in Romanian (my native language and the only language she understands well), and the only way I managed to get myself to be able to write again was deciding to write under a pen name and to keep it all a secret from her. I'm now able to write under my own name, and that's even though she has been learning English and reading one of my series online (it's Toadmila Wartly that she's reading) but it has taken me a lot of years to get to the point where I'm comfortable with knowing that she might read what I write. And I'm still afraid of her reaction to what I write.
I know this all sounds like a lot of whining, but what I'm trying to say is:
A) not all parents are supportive, and that will have a tremendous impact
B) if your family and/or loved ones are not supportive, you are not alone
C) don't let your family bring you down or discourage you in any way
D) if your parents are supportive, go thank them now! You have no idea how important that is, and how lucky you are.