I'm going insane! Ia it normal?

I'm a 16 year old girl and I feel im going crazy but I dont want to talk to my mum about it because Im scared she wont take me seriously.

Even when I was little I saw spirits, orbs, auras, had vivid dreams and saw things when others couldnt. Now that I'm in my teens I still see these but now I also see square shapes that just seem suspended in air and that look like portals, I can walk around them and everything yet no one else sees them. I also hear noises others carnt hear quite alot and voices sometimes but that only occurs very rarely.

I know this sounds crazy but theres someone inside my mirror that isnt me. She looks exactly like me but I can tell she's not,her eyes hold something that I don't register inside myself, pure evil. I dont think the mirror me is particularly keen on me and I think she knows I know she real. This may of started when I was little and saw a woman in my mirror who was evil, i remember it like it was yesterday.

Also I've seen dolls and ornaments move and blink before and i know im not imagineing it. I've seen it happen too many times for it to be my imagination.

I have no sense of smell, I havent since I was born so I dont know what anything smells like yet I get occassions when I'll be sitting im my house or somewhere when all of a sudden a rose scent drifts into the room and surrounds me. I dont know how I know its roses and it happens at all times of year so not just when roses are blooming.

I suffer from reuccuring depression aswell.

I have really vivid dreams and have done all my life, they seem to link together and because of these I'm pretty convinced someones out to get me and is knowinly messing with my head.

Recently I've become obsessed with conspiracy theories, religious ideas/beliefs and the apocalypse. Actually I'm drawing £400 out of my bankaccount later this week to stock up on supplies and buy weapons.

My thoughts race and I come up with the most bizare things like animal/ human cross breeds ect.

I feel like I'm going insane, I'm crying over little things and small arguments, getting angry for no reason and feeling frustrated that people carnt keep up with my ideas and moods. I know it's not there fault it's mine and thats why I'm angry. I've mentioned some of this stuff to my mum before and she says im just imagining it but I'm not! Have I got something wrong with me or am I just messed up?