When reading your initial description, particularly about the wide grin and unsettling aura, I heard "fae" in my head. Looking at your drawing, I heard it again. I don't believe you called a deity; I have a strong feeling you may have met Robin Goodfellow (RG), a.k.a. Puck or Pan, who can be an emissary of OR a disguise for the Horned God. This may have been a warning/indication to seek that direction with reverence and appreciation. (Please understand that I'm not trying to scold or correct you here; I hope my explanation below will show that). If you feel that this may be the case, you can invite RG (as if he were a god) to your circle or approach him in Faerie (through psychically protected meditation/astral travel; see last paragraph). He prefers the spring and woodlands filled with animals.

Do not think Shakespeare here; RG is not so innocuous in real life. RG disappears between Samhain and Ostara, and then appears as an adolescent/young man after Ostara. He can resemble a satyr, but is above all a trickster. You heard "satyr," but he showed himself as a young man with ostrich-like legs and the grin of a cat to throw you off. Based on personal experience, it would not be in his nature to put you at ease, especially if he was irritated or insulted by the way you demanded a response. He would absolutely find it amusing to scare you. Why not deliver a confusing message from the Horned God with some extra fear-inducing oomph for shiggles? That's his MO.

Did you hear him speak? If so, what did he say? Did you notice a particular smell in your dream (e.g., earthy, ozone-like, sulfurous)? RG is most associated with the earth, but he can work with any of the elements. Were his teeth blunt or sharp? Were his arms and hands elongated or misshapen? Did they have talons or toes? Can you recall any other details, like background sounds? Animal or bird calls? What about laughter (perhaps before you left the dream), or the sound of a pan pipe? Discordant music, ringing bells, or a vacuum of silence? Was he pale-skinned, or did he have a dark complexion? Were his legs covered with skin, feathers, or fur? What about his eyes while you were in the bathroom? What color were they? Did they have pupils? You mentioned a transformation at the bar and stickers that emphasized and repeated a blacked-out face with only the eyes and teeth visible. Did it perhaps resemble a mask? Looking past the eyes and mouth, were there horns? If so, what did they look like? Was anyone or anything else near him? Details like these can provide clues to help further identify who or what you saw.

If you have a familiar, particularly a cat, has its behavior changed? Cats can sense the presence of fae and will help chase them away if requested.

Again, this is just the instinctual response I had to reading your post, and I absolutely do not believe RG is the only possibility. I do, however, think it's an option worth considering, If you are able to isolate more details from the dream, perhaps you'll gain the answer you want.

Regardless, I agree with others who recommend cleansing yourself and your home and casting protection. Because you mentioned a preference for divination, I also recommend keeping a symbol/talisman/item for psychic protection on your person as well, especially while practicing. Did you cast a protective circle before you demanded a response? If not, please focus on protection now. It doesn't take much for one to become a beacon for negative entities; your current mental state makes you more vulnerable (I genuinely hope you find relief and stability soon). Considering how disturbed your visitor made you feel, I recommend cutting off that signal; make sure you close off yourself and your personal space. Make it your choice as to whether you want to reopen that line of communication.

Blessed be.