have more patience

I have a problem with my attitude, which is closely connected to my patience. If I feel even the slightest bit of negativity from someone Im talking to I Immediately turn sour. Which is crazy because I consider myself to be a very genuine, nice person. If someone asks me for something I give it without a thought, I help people, Im not mean to anyone. But my patience is 0, I have none, when things don’t go my way I get an attitude about the situation and feel terrible afterwards and most times shocked at myself..This goal will be a challenge.