I admire your honesty. Most things are just that bit extra stressful when you are on your own, I've been a single mum (to human kids) for years so I understand. Glad you found it here to talk things over.
Have you thought of employing a dog walker or, if you are like me and don't like people talking your dog out, ask someone to pop in on your pup to let her out into the garden for a wee and a play? Maybe an older person in your street would do this cheaply for you. I know I'd be only too happy to do this for any of my neighbours (I just wish they'd ask!).
I can't recommend enough the joy of taking a dog to puppy training. Your dog meets all sorts of dogs there. My Dylan loved it and I used to spend an hour with a huge smile on my face just being with so many cute dogs. I loved it, it helped me with depression and it may help you.
¨°º¤ø„¸Dylan, Poppy & Kipling's ¸„ø¤º°¨
¸„ø¤º°*¨''' ' "*Mummy`` "*'¨°º¤ø„¸