Is Santa Claus real, truthfully?

Please don't give me just yes or no answers. it would help if you explained why or if there was research around it. when i think about santa, is seems unreal. however, he could be real cause i have been to the north pole near finland and i ever have a picture with me standing by his reindeer. the park where you could see santa was closed that day. my teacher told me he ain't real and we were foolish to believe in him, which i think was really f*****g stupid of her. anyway, when i asked why they have the santa tracker, she said just to make kids happy. please tell me a truthful answer. ii can take it. when i aks my parents they tell me,"I don't know if he's real. That's your decision to believe in him."