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I only shoot film (besides phone pics for mundane purposes) and I really don't believe you, a self-described modern digital gear queer, would find that film looks better than whatever you were shooting before.
That is unless you have (a) atrocious sense for composition and you're comparing your photos to other photogs' well-composed film photos, in which case your own ill-composed film photos will just disappoint you, or (b) your technical knowledge about the photographic process, like exposure, contrast, and color grading, is lacking in which case you should just learn more about the camera and software you already have.
If you're sure neither of the above is the case and you still want to shoot film for whatever reason, I suggest getting ONE of the following
1. Medium format twin-lens reflex or folding camera. Generally these have no automation. Research a few cameras in this category, specifically their design and operation, and you will have an idea of what the experience is like-- very different from modern digital cameras. Buy a cheap working one from ebay. Spend an afternoon finding out what all the controls do and how they affect the shooting experience. Expect to fuck up your first roll of film anyway. This is fine.
2. Cheap rangefinder camera. This will be a more familiar form factor to you but still noticeably different. Film and development will be cheaper.
Whatever you do, sell your shit. Keep one body and no more than three lenses. Too much gear is bad for the mind.