There is always going to be someone better than you. I'd say just start working on your site's JS, you have no idea how much you'll learn in the process :)
Thanks. I did the same a few years ago when I took a job that required Filemaker development and I had never used the software before (downloaded the free trial before the job). Once you start using something, and you have the knowledge to know where to look for help/answers, you can do quite a bit.
Hey – working on a startup in the space and am very interested in talking with somebody working in infection control. If it's of interest, please send me an email (in my profile).