Money

Why is that I am so bad with money and that I can't just trust God to provide for me like he is supposed to. Why do I ether worry about having enough of it constantly, or spend it on stupid things leaving my self unable to pay all my bills. Its funny how I can justify the purchase of any peace of electrical equipment with out any hesitation but tithing to church or any other organization is hard for me to. I mean they are doing God's work but I can't seam to ever have money to give them but, a new cell phone no problem I will find a way. Maybe this goes to a deapper lack of trust in God to what he says he is going to do.