The world is full of people with zero vision and skill. Relying on them to gauge your success is basically stupid. If I listened to people that told me I couldn't do things, or to take the safe road always, I would not be where I am today.

1. Failing is beautiful. Prepare to fail
2. All brilliant ideas appear crazy to people without context, or imagination (see everyone)
3. External validation is something you need to stop seeking. Of course friends and family for support, but you don't need people telling you you're great, you need to be self aware, and be able to objectively identify the quality of your work and ideas.

Let your intuition guide you if it is in tune.