Why do I feel happy when I buy things?

I think most of us feel happy when we get something new , This could relate to when you were a Child or Teen you didn't get those things so that is why your happy when you buy new things...Growing up in my Teen years my parents did not have money to buy us new clothes , we didn't get new shoes , So i will share something with all of you . Now that I'm older , i love getting new things. I just got a brand new pair of bedroom slippers . Yes i love them . See in my Teen years my parents bought us 2-3 pair of jeans , 2-3 shirts , 1 pair of gym shoes , 1 coat and under garments but that was the extent of things and we had to sacrifice on what my parents could afford. My Father's steel mill job shutdown so we lived on extended benefits until them run out and they lived on what money they had saved for us Kids . My late Mother , went out and would babysit to bring money in the house so we have extra ..There was lot abuse with my Father. So i can't handle being abused by anyone to this day. .I was severely bullied by peers in School ..I was made fun of by my last name , I was made fun of being overweight..So this life has made me mentally ill. I do try praying and i never turn anyone away who wants to talk about God to me.. I spoke with Jehovah's Witness for 10 minutes in parking lot of Family Dollar , She was a wonderful Woman and i enjoyed just talking to her . So i never turn anyone away. Yes , everyone is entitled to be non-believers ..I do pray for the Atheist and I do pray for the Satan worshiper's..But i do not judge those people and i still love them and will never turn them away.🙏😇