I'm 45, male, and have never been sexually active besides masturbation, and, during my 15th year of life, several quite intense kisses from pretty girls, which I fantasize about to this day. I attribute my inactivity to a mix of my disability and having moved around so much. Both facts of my life have contributed to social maldevelopment, which contributes to sexual maldevelopment.
So, I have no one to talk to in real life about my fetishes, but they do tend to be consuming. I am medically retired and have lots of time to engage with social media and other research tools to explore my fetishes. And I do on the daily. It's a fixation. Do I think it's unhealthy at times? Maybe. But sexuality is a huge part of me, and that in and of itself is not wrong.
When I masturbate, the girl in my fantasies will ALWAYS have a medical mask on for immunosuppressive issues or allergies/sensitivity. The only time she would take it off is to kiss me or fellate me. Any orgasm I give her, she will be masked. So I think I'm pretty similar to you in needing my fetishes to be a part of any sex play (f I got that right).
I think I'm also like you in that it would be 100x better to have a partner that not only fully understands my fetishes, but wants to explore them with me. Ageplay as Clara with a satin mask ('tis the season, and the year, for this). Or maybe she wears footed pajamas to bed, and needs to also wear a half mask cartridge respirator to keep her lungs safe. Or a catholic school uniform with plaid skirt and matching mask, with sweater tights as well.
It's really agonizing at times. I'm an Atheist, but my favorite depiction of a heavenly place after we die is one with 72 virgins, even if that phrase was misinterpreted. 72 young housekeepers, all in masks, some in footed pajamas or Clara gowns, and some in school uniforms.