Organization Help!!?

My friend and I recently started our own community organization. This isn't an official organization, but we wanted to raise Autism Awareness and money for a cure. We've already had one event that was a Yoga Gathering. We raised money, and donated it to a nearby AutismSpeaks. We were wondering if this is legally allowed and if we will be able to continue this even though it isn't technically a legalized organization. Would it still be on record that we are doing this? We've created a Facebook page and Instagram and other social media sites for this organization. We want to know for future projects with volunteer and other work, so we would have this as one of our accomplishments. We would want this to be "legalized" per say, but according to our research that would take a long time and we aren't even of age. we are only 16 and this involves taxes and other federal work. We'd be fine with just raising money for actual organizations, but we just would like to know if we would still be recognized for this work.

Thank You!!