Well, I guess no advice from another can be a perfect fit, cause no one knows you as well as you yourself, except for God and your twin soul maybe, if you believe in that.
And sometimes I feel one asks for advice to shed the responsibility for making own decisions, so I guess if you really want to be more independant of other people's well meant advice the only way about it is to follow your own counsel more and more. If you don't make your own decisions, somebody else will certainly make them for you.
Maybe you could start with little things and then move up the scale. Be playful, like sit in front of a mirror and ask yourself what you want or how you feel about something, talk to yourself(you don't have to do it with anybody watching

).
It's a growth process I guess we all struggle with, and some advice is incredibly useful, so I'd never be shy to ask for it. If you make it clear that you ask for input, but are still in charge of making the final decision, then people will fall in line with that after a while.
Especially if it's family they're used to guiding your life in the past, so standing on your own two legs in all ways is a process one simply has to go through. And then they're people who like to control others cause they're afraid, or cause they got their money set on you in some way to make their dreams come true, and one has to struggle with them.
Like I said relying more on yourself is a growth process, nothing you can acchieve over night, but I wouldn't worry, cause if you keep at it, you'll get where you want to go.