Crowdfunding can work well when there is a real product, as already commented earlier. But whether you have a great idea or not, it is important also to understand that crowdfunding is complex. Successful crowdfunding campaigns are most often run by professionals or marketing agencies. So the odds to succeed on raising funds can are not that high. Also you need to find the right type of crowdfunding. From a learning point of view though trying to do a crowdfunding campaign can be a great experience. If the business is a physical business in fitness, like a gym, there might be other ways to fund it, but being a fresh grad and having zero experience in business will make difficult to raise funds that way...