I often get minor anxiety but only at home and in the evening/night. what could be causing this and how can i distract myself from it/get rid of it?

Part of your anxiety: is due to the fact that at night we are less distracted by the cares of the day. Please listen to your "self talk" when you feel this way. You may be saying things that frighten you in your mind. "Feeling Good" is a book by David Burns that can help. See a mental health professional for anxiety treatment. Peace and good health. Please don't rely on medication alone.