Hello,
Maybe you should meet moms in a similar situation? It gave me a lot of strenght, when I moved here, to realize that some other moms I know are experiencing the same thing....I almost think that moms of kids 0-3 live on a different planet, and can understand only one another.....At this age even going grocery shopping seems like an Indiana Jones adventure . By the end of the day I am ususally POOPED, and I haven't really accomplished that much...
My tactics: I always smile apologetically

when my toddler acts out, and that usually eases the tension between me and the person who has a problem....
And wish me good luck...I am taking my son to my dentists appointment with me next week..see how it works out!!!!