Siberian kittens & cats in Nevada

Frank is 3 to 4 years old. We adopted him from a not good situation he was stuck in around 10 months old. He is quite independent cat. He will avoid other pets and people until he is used to them. He can get along with dogs and cats if they get along with him. He doesn't like to be held for long periods of time. Not picky with food or toilet spots. He can be vocal when he can't get into a room he wants to get into. He is not good with carpets and will use them as scratch pads and rip it up around doors to get in and out of rooms. He likes to go outside but only if a person is nearby that he knows. He is 95% of the time an indoor cat. He likes to explore but gets anxious as he does. We think some of his anxious behavior stems from his first home.