Crowdfunding is an excellent way of raising funds for any cause, need, or project! BUT people often make the mistake of just believing that setting up a page on a Crowdfunding website will be enough to get funded. Unfortunately it's not...
You actually have to set your page up properly and then be pro-active about promoting your fundraiser to as many people as possible.
You also have to realize that for someone to consider funding you they need to have a personal or emotional connection to you or your cause/project. So what are you doing, on your Crowdfunding page and through your promoting, to connect with people?!? It's an important question to always ask!
I would highly recommend that you read the Online Donations page, which covers setting up your campaign page effectively, and it's part 2 which covers the promoting side of things, on Rewarding Fundraising Ideas to get the most out of your Crowdfunder!
Be proactive and connect with people and you'll have a successful Crowdfunding fundraiser!