I'm in a similar situation, raced when I was really young and am getting back into it. I just went and joined a local racing club. For the cost of one class I get a whole season of crewing, marshaling,
rigging, etc etc etc. I was lucky enough to find a club that is very do it yourself, so the dues are very reasonable. For instance, we put the docks in ourselves 2 weeks ago and rigged all the club boats last week, did some building maintenance etc. Look around and see if there are any similar clubs in your area. NJ is pretty upscale around here but this place exists.