Feeling distant

I just came to the realization that I am don't feel close with God. It's a feeling that I have felt before but not like this. It's not that I don't belive and know that he has helped me and blessed me all my life I just feel distant. I have noticed that I have felt more angery and short tempered lately and say things I shouldn't. I know that its got to do with me not letting Jesus in my heart all the way. Just now I was praying and I really didn't feel it. I felt like I was just going throught the motions. I know that praying should come from the heart and it usually does. It kinda scared me to feel that way. I know the last time I was feeling really distant from God wierd things started happening to me which I know was because satan was trying to reel me in. But it only made me get closer to God. I have a perfect family with my loving Wife and two children and I don't want them growing up with a father who is trying to teach them Gods word but isn't really into it himself. Please Pray for me.