Ha ha Karen, I had to laugh at your trouble making a decision, sorry. I've just been through the same thing. That's why I ended up housebreaking in the winter instead of the summer, I waited a bit too long deciding.
Am I sorry I got Jake, yes and no. Do I love him to death, yes. When I'm tired and wish I could just go to bed early one night, yes. He is gonna be a great dog once we get past *puppy* They sure are a lot of work. A lot of fun also.
I had actually went to the shelter after a 4 month old puppy and came home with a much younger Jake. One day I will laugh at his 'crisis' I have created. Each few days it gets a bit easier. Good luck in your decision!