My cat wont stop misbehaving?

My cat name is Tiger he almost a year (he will be a year on May.18). He a Maine Coon and he will not stop destroying my stuff and knocking stuff off my tables, Ive Tried spanking him, yelling, saying no, spraying him with water. No matter what I try he will not stop. Any idea i love him and would hate to have to... show more My cat name is Tiger he almost a year (he will be a year on May.18). He a Maine Coon and he will not stop destroying my stuff and knocking stuff off my tables, Ive Tried spanking him, yelling, saying no, spraying him with water. No matter what I try he will not stop. Any idea i love him and would hate to have to give my cat but he driving me crazy ive almost started to cry sometimes. I dont know if this will help but ive had him scene he was 5 weeks somebody drop him off on my street, and he is fixed. Please help me.
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