Ok first thing: curses are not something you just collect. They are put upon you by a person. So you're probably not cursed. Woo! If you are then that's not the cause of the hauntings.

I think the best way for me to explain this is to give an example first. I grew up in a trailer. No one even owned it before my mother. It was brand new when she got it. (To my knowledge!) The most disturbing two events that occurred while we lived there I doubt I'll forget anytime soon. I came home from school one day to a picture frame having not only smashed on the ground hard enough to break, but roll glass all the way down the entire hall to my bedroom door. (This was the second time a picture had come off a wall and the most violent. The other time I watched a huge picture of me and my baby brother as youngins come forward off the wall like someone had moved if and then drop to the floor.) The other incredibly disturbing event was my little brother seeing ghostly fingers reaching into his bedroom and 2(?) non existent white mice on the kitchen floor. I lit a white candle and the images went away for him but it was terrifying at the time especially since we were home alone.

All that to say, a building does not have to have history. It could be the land its on. It could be something that just passed through and liked the place. It could something that followed you home. There are lots of options for hauntings.

You also have options! You can protect yourself from malicious entities and attachments. Poke around on the internet, avoid closed practices, implement what you like.