Doubts regarding purification

Salaam,

After urine, I cleaned and was going into to the shower and I saw there was liquid thin that was on top of my area which looked like mazi, I am doubting that it drops had fallen on the floor and before washing the floor, the impurity had spread on shoes,throughout the house. I keep thinking that hair on the floor could have got mazi on it and I have not caught it with the vaccum. I feel that I have become very OCD and doubtings things are impure which things hard such as praying, etc. I am overthinking things ?

Can you please advise ?