follow your heart. not what other people say

there is a quote from the movie "pursuit of happiness" when will smith said to his son,
" Don't ever let somebody tell you... You can't do something. Not even me" 
 You got a dream... You gotta protect it. People can't do somethin' themselves, they wanna tell you you can't do it. If you want somethin', go get it. Period.

its so easy to succumb to other people especially to those who are closest to you. but would it be better if you follow your heart and not what they tell you?  they dont know what is inside you. only you can truly listen to what your heart says.