I just wanted you to know you are not alone. Last summer I experienced extreme anxiety and panic attacks whenever I was left alone.
I was living with my boyfriend at the time and he was away at work everyday and very often worked the night shift, which for whatever reason was always harder. The way I coped was by reading, renting DVDs from the library ( I found a lot of great old movies at my local branch), journaling, painting and generally just trying to find new hobbies. Relaxation strategies like bubble baths, meditation, and yoga generally worked well for me if it was just a bad day. Someone else already mentioned this, but setting a schedule for yourself and/or goals is a great way to stay motivated. Even if it's just read x amount in my book today or clean x, y, z.
Remember most new things are frightening at first and you're going through some serious changes. I'm sure after a while when this is no longer "new" it won't feel quite so overwhelming. Good luck!