I had moments like this and still do. Also I'm sure quite of alot of Artist feel this way. Plus don't give up just because you can't do it how other people do it right now. You'll get there and find you own style. And if you need help there is always people out there willing to help.. free or not. And I'm sure theres books you can find to help you out and website on the internet. Not mention youtube. :)

And I know it cuts to hear your family, who should be supportive, say those things. But you can't let it get to ya.