The first step is accepting that you don’t have enough time to do it all simultaneously. From there, I’d suggest you to prioritize the most salient interests. I’d also give preference to interests which require a long-term time commitment. For instance, one of my hobbies is strength training; I always prioritize it over sometimes-more-salient interests because strength is use-it-or-lose it, and other interests are often fleeting, for me.