What can I try at home for my cat’s behavior problems?

Again, it depends on what the problem is. Let's create a scenario: The cat is scratching the furniture. Of course, we don't want them to destroy the furniture. You could say no and get them off, try a little squirt with a water bottle, or make that area unappealing by blocking access. You can even use ScatMats on the floor or put different scents on the furniture. There's also a product called Feliscratch by Feliway, which you put on the item you want them to scratch to draw them to it. It depends on the problem, but each solution would be individually tailored for the problem.