You can’t succeed in life on your own, no matter how smart you think you are. Ask others for help. Not only will you benefit from different perspectives and experience, you’ll benefit from their interest in helping you succeed.
Networking is the key to success in large organizations because often processes aren’t enough to get things done. If anything, they slow things down, and so it’s personal connections that help you get things done. It takes time to build a strong network, and it’s a hard thing to replace, but it’s your network that can make you uniquely effective in your environment.
People are more likely to be invested in your success if you share what your problem is and what your obstacles are. Every person who contributes to solving it is one more person who’s already “feeling the problem” in the same way you do. That’s one less person to persuade of the merits of your idea.