Failing Jesus Feeling the pressure

Well yesterday I noticed that I have been in a pretty agitated mood lately.  Especially since I have made the decision to give myself to Jesus.  My wife Stefanie and I were washing the car yesterday and I decided to talk to her about it.  She confirmed that I had indeed been acting agitated lately.  This really bothers me because you aren't supposed to feel this way when you dedicate your life to Jesus.  Well after talking about it, we together found that because I have done this before (dedicating my life to Jesus) and every time I have failed in one way or another and just end up back in the same place.  Have you ever felt this way ??