I have two tickets to a concert in February, my friend said they would go with me but canceled due to covid. I have no other friends to go with ,the only other person to possibly go with is my sister. Who is not exactly always the nicest person to me, when I am around her I feel like I am always under scrutiny and I want to have fun not feel like that. I dont want to be the person going to a concert alone. I go to movies by myself all the time but this is different. What should I do?