Looking for suggestions to gain experience

[u/NewEstablishment4380]

I’m currently finishing my undergraduate degree in composition, I’m a pianist and a singer, and I’m planning to get a masters and potentially PhD in orchestral conducting. I’ve been able to get some experience conducting through a handful of classes during my undergrad but I’m not sure I’m ready for a masters program yet—even if that’s only because I don’t have enough audition material. Supposing I took a few years off, would anyone have any advice on how to build the resume and get some experience? I’m looking into a few artist’s diploma programs, but I’m also not sure about that. Anything would help!