Masters/PhD

Hey, I've finished my bachelor's in energy engineering, it is essentially electrical engineering, anyhow I've felt like i should persue more education but i don't know what field, there are so many things i could master in electrical engineering field, and I've always had trouble identifying what i like. Anyone got any advice how could i choose or what a field that could be better in general, also I've always wanted something related to working labs stuff like scientist or something related to space. I know i am all over the place but i feel overwhelmed and don't know what to choose or do.