Pissed between Expectation and my own dream...

Deep inside me there is a struggle going on between expectation and my own dream but I am confused between the two as of now. Everybody close to me or somehow remotely close to me expect a bit from me and up to some extent I can justify their expectation because its the human nature. But is it not possible to keep it away and follow your dream..the ultimate dream which we nurtured since childhood.Well this point would seem like an UTOPIA to many people(sometime to me even) but I feel if I fulfil my dream then other's expectaion could also be fulfilled,howsoever it may take some time.
I would like to cite my example only. I have worked close to almost 2 years and in this span of time there had been handful of instances where I felt satisfied with my job but with the onset of my job I must have risen other's expectation and now when I am trying to come out of it then those people are not allowing me to come out of it and this is putting hinderance in my ultimate dream.Because there expectation is at stake. I am serving notice period in my current company and many of my colleagues ask me what I am going to do next and when I answer that I am going to make my passion into proffession then they are confused or they donot understand at all the depth of my answer .Leave them even my parents are unable to buy this "Passion proffession stuff". I believe I am the one who is liable for this act since I have heightend their expectation and when I tell them that I want to do something like this they get wary. Well I dont possess their thought process but I can sense their misery. But barely feeling empathitc for them wont land me anywhere.I have to make my dream into reality.This can only save me from their ignominy and once dream is conveted into reality then they wont mind after that.
In a nutshell expectation and dream are somehow co-related........The moment we say that I want to do this and I want to do that,from that moment only you set expectation for people around you but that mere saying is our dream at some point of time in one's life. Lastly I am also going to follow my long time dream which needs to be fulfilled and with this fulfillment i can fulfill their expectation as well.But as of now I am pissed between the two.
May be because I have a vision but I donot have capital to execute it or may be I am little bit wary about the things going around me at present. But somewhere in my mind I have decided to fulfil my dream first as I feel that with the fulfilment of one's dream one can fulfil other's expectation too.