Your may cross people who have giving up on their goals and naturally have this tendacy to knock others down. You need to be firm with your dreams and goals. This starts by being your best supporter. You must be your best cheerleader. Once you start talking negative to yourself, you eventually will believe these thoughts. You are your thoughts and why waste it with negative words when it will only bring you down. Once you are firm with yourself it will be easier to no let any other people talk you out of your dreams. Be firm. Promise to believe.