I'm really into paranormal stuff. But funnily enough, I've never seen a spirit/demon/entity/etc! However, I have had an experience with an entity in a dream (will explain in a sec) and I have seen a few UFOs.
When I was born, my mom got a tabby kitten she named Prince. (Yes, after the singer.) Prince grew up with me and was the same age as me. He was my buddy and always knew when I was sad - always there to comfort me. As a kid, I was unfortunately very sickly and Prince never left my side. No matter how bad it got. I was devastated when he passed away from cancer at 14. I will never forget my boy but in the end, I think he's okay. A few years ago I had a dream with him. It was unlike any dream I ever had. I was in an endless field of rolling green hills. The sky was so blue, more blue than I've ever seen anywhere. (And I'm from Florida! That tells you how blue this sky was.) There was a big tree in the middle and animals of all kinds were clustered around it. Prince came running to me from the animals and the rest of the dream was me holding and petting him. I truly believe that was him letting me know he was ok. Before this dream, my mom and I kept feeling our beds depress at our feet. Like a cat was there. But our current cat, Lia, wouldn't be there. After I had this dream, it stopped.
I painted the dream shortly after I had it. I kinda forgot the tree but hey, I still like this one because of it's meaning to me.
As for the UFOs, I saw one when I was 10. I was with my grandparents on I-95 (very long, boring highway for the non-Americans) and I saw it at around 1 AM. I was laying on my back looking at the stars and whoo boy, that made me jolt up. It was quick, green, and gone in a flash before I could scream at grandma (who wasn't driving but sleeping) to look. Grandpa, who does not believe in anything like that, told me it was nothing. But I know it was heh. The other two I saw in the past few years. Both times I attempted to record them and was met with my phone shutting down. Point taken. Clearly. I will not sit here and say it was 100% aliens as I can not prove it (I'm not dumb lol)... But yeah. That's where my super obsession with aliens came from lol.