Verb conjugation of "arruinar" in Spanish

My daugther was crying all night and we did not know why. We assume that she is getting into the terrible two age and wants to give us a hard time. We love her so much and do not get upset by that.
I walked down the main street of the town and soon found out that there was a nice place not far from the main square. It cost around two hundred pesos which was equivalent to twenty US Dollars.
We checked in at the huge Hotelasia, close to the Sony center, a large shopping mall, where we planned another shopping spree in the coming two days. We had disgusting dinner at a boring pizza place.