Whenever you have a big idea or plan or anything that seems positive and optimistic - people are going to tell you why you're going to fail.
They'll tell you you can't do it.
They'll tell you It'll never work.
I can't tell you how many times I've had a great idea spit on by people around me.
Ignore them - you need to totally ignore negativity.
People will tell you this kind of stuff for a lot of reasons - It might be jealousy, it might be out of ignorance, it might be because of their own fears and insecurities or they may just have a negative or cynical perspective on everything in life.
Either way - Ignore them! If great people in history listented to the nay-sayers...
nothing great would ever have been accomplished.
This doesn't mean to be stupid - if someone is offering you good advice - it's okay to listen.
You can take their viewpoints into consideration because there may be some good advice in there - don't assume you have all the answers.
It's okay to change your plan around a little - but never let it stop you - NEVER! Negativity is everywhere and it comes in disguises.
It comes from people you love - your best friends - it comes with smiles.
Learn to challenge people's comments in your own mind and if you realize they may be right - immediately think of alternatives instead of giving up.
As a very basic (and a little bit ridiculous example) - If I have a massive ice making machine and I tell someone my idea to sell ice to Eskimos- and they tell me that it's a terrible idea - it'll never work.
I don't think, "yeah - you're right" and quit.
I think about where else and who else I can sell ice too.
You can tailor your plan based on the advice but never, ever do let it stop you.