We all tend to value the opinions of the people we spend the most time with. If they don't support your passion, then you have to step back and realize a few things.
- They aren't you and have no idea what you want and are capable of
- They likely aren't authorities on what you're asking them about and you shouldn't place their opinion on a pedestal.
- You can cut them off if it is seriously affecting how you feel
- They could just be envious of your audacity to do what you want and regret they didn't.
- They may need validation that what they are doing wasn't the wrong choice.
- You control who you spend time with and whose opinions you value. Don't value someone who doesn't value you!