You get through it step by step. Break it all down to smaller goals, otherwise it will overwhelm you. Get through that first chemo is one goal. During chemo I ended up reducing my goals to 'per day'. If I could get through that day I was happy. Worry about tomorrow when it IS tomorrow. Don't worry about all the other treatments until you come to them. Get some achievement under your belt like "I survived all the tests pre treatment.' That in itself is something of an achievement and then you are on your way to beating breast cancer. <3