Ghosts making me look crazy i dont know what to do im scared and need help?

kay so the other night i was in bed and i looked to the back of my closet and i saw little faces but didnt think much of it so i went to bed again and it felt like someone was laying beside me and touching my leg then i looked up and there was this sand feather like stuff in the air it didnt fall at all but i put my fingers through it it was the weirdest thing i did that for a little while then went to bed kinda thinking it was the adavan i took and if it was a ghost kinda cool, then i felt like someone was sucking on my nipple so i rolled over and ater i saw again so turned on light and sat on my bed a there was two different boys sitting in parts of my room plus the girl in closet but when i looked at them they dissapeared i tried to talk to them and say why are you hear can you talk and stuff like that i told them to leave but they wouldnt go so i got my grandma and she didnt believe me because they wouldnt show them selves to her.. she kept thinking i was crazy and we argued for hours they would do things behind her that i would notice and she couldnt see. or id see the air moving kinda fuzzy.. i was taking a shower and two faces showed up in the shower cutain so i rubbed them away and they came back. i was siitting on couch and the pillows looked like they wear lookin at me and had faces and when id walk around house other things looked like they were moving. my grandma took me to hospital and they let me go. when i got back one of my garabge bags with clothes in it had a face and eyes just looking at me so ignored it and tried to tell them but they didnt know what i was talking about and made me go have a nap i went under the blanket texing and i looked up and it was a face so i quickly flipped it off me. my mom took me later that day to our storage unit and i swear one came along i saw it in the back speaker and when she got out it went in the head part of the seat like little sands or something and it made a really detailed constantly moving picture it went through the air thing in the car and out side where i saw it moving around in the wind then it looked like it got bigger and turned into a grim reeper type thing very large and long but no one eles was around, then we left and it didnt come with us i dont think, ive never had anything like this happen before and its really annoying nobody believes me they think im phyco. my mom took me to the hospital again later and we were in this room and i was crying and looked the chair she was on behind looked like another grim reper type thing and white film started laying out beside it in the air and some bird like fluttering thing was in it but it was on the side so again nobody but me saw. laying in the hospial bed looking at the walls thousands of spirits came flying and me and around even going into my feet and body trying to lay themselves, all different shapes sizes and types. then when i got in the car i looked down at the dark floor and it looked like a hole bunch followed me when the light went on they were gone, i went to bed and turned off light and there was a whole bunch of creatures and spirits and ghosts in there some that didnt seem like they were too nice and my cat even caught something in his mouth and was eating it a it was kinda fluttering and stuff so i grabbed it from him after he bit some of it and went to show my dad and it went invisable, they all think im hillusinating but i know im not this is real and its scary, i just want them to go away there wrecki ng my life please help mee :( i dont know what to do and why they keep following me