Am I Crazy?

So C has been on 1st shift for months now and Em has a well established pattern at bedtime. C's job is very eradic latley and so now he is back on 2nd shift. This is the first week in months I have been at home alone with Em at night. That well established bedtime routine, needless to say, does not involve me. Tonight she screamed for her Daddy till I thought I couldn't take it any more. Charlie Brown came to the rescue and that quieted her for a while. I have to work in the morning and she can seem to sense that as well. That means I won't be able to go to sleep until C gets home at 11. I am thankful he even has a job but the flip flopping of shifts is affecting Em. She misses her Daddy at night. I am woman enough to admit that she prefers having him around most of the time. It's a little girl thing I suppose.
So, to my question. If I struggle on a daily basis and most of the time the 3 yr old wins, am I crazy to even be thinking of having another baby? Am I a bad mother because I need a day to myself? I would love to get my hair cut. That would be lovely. C and I haven't been on a date in a year. Yep, that's right, a year. We talked about that last night. We need some alone time. Unfortunately, that isn't gonna happen. My mom used to watch Em a lot. Now she doesn't see her at all. His mom watches her but for brief periods and usually so I can work extra to make a little extra money. I have a friend who has left her 3 month old overnight already for a shopping trip. Em is 3 yrs old and we have never left her overnight. She has her mom's OCD, so I think it will probably be a while. Oh well, maybe I will get some sleep tonight. Em goes to daycare tomorrow so maybe she can interact with some kids for a change.