One of the keys to success is passion. If you care about something or want it naturally you won't need to force yourself to work on it. The passion will be your fuel. Only work on things you are passionate about.
Actually, I can do everything you said I couldn't, be everything you said I wouldn't. I will break through those negative opinions and continue making my life amazing! --- so True, I give a sh*t about your opinions on what I can and especially cannot do!