Let's get right to the point, if you constantly worry about family/friends that don't support you, you're going to drive yourself crazy and you need to stop!
We live in a time where social media is booming, everything is on the internet and you may want to start a business or blog..etc. Go ahead start whatever business or blog you want, put it out there and see what happens. Tell your family/friends, your biggest support system will come from strangers, you would think people you've know for years would support you...it doesn't always happen that way.
Don't get discouraged, keep moving forward, build your brand.
I know from personal experiences how it feels to not have the most important people in your life show lack of support. It sucks but there's nothing you could but move on and take notes on who was there for you as your business progress.
Being a entrepreneur or blogger is hard work but if that's what you want to do, go for it and make a name for yourself. Somebody will notice you and spread the word!
I hope this helped someone out there.