Hello, I adopted a 3 year old bichon frise about 6 months ago.. my family has become very attached to him and he fits right in with our family. However when ever we leave home, he becomes histeric, breaking window blinds, tearing down curtains... urinats all over the house

... the neighbors complain he also barks the whole time we are gone.... I’m not sure what to do as my husband and I work full time and no longer have an in home sitter for our son.. should we get him a companion? Another dog would be a bit much but perhaps we could manage a cat... thanks for any advice you could give me! I grew up with golden retreviors and never dealt with this problem.