Seeking sponsors

Since the lightweight category in which I row will disappear from the Olympic programme after the Paris Olympics, the limited financial support available for rowing is primarily reserved for Olympic boat types.
Without financial support, some important stages are in risk of being cancelled.
I am currently studying in Ghent and so my parents are covering most of the costs now.
Therefore, I am trying to look for sponsors myself.
Nothing is for free!
Honestly? I'm very good at rowing, but I don't know much about sponsorship. So if you have any questions or suggestions? Definitely let me know, I can only learn from it.