Lost

I can't seem to pull myself up from a second job rejection I received yesterday. It added so much to my already shitty week. I think it was such a shock to me because I just had my first interview on Monday and I thought it went really well. The interviewer even told me when the 2nd interviews were going to be held and then on Wednesday I get a "thanks, but no thanks" rejection letter??? I was in shock. I just stood there and wondered why? Why can't I accomplish anything I want and try hard for??? WHY? I know... I have a wonderful husband and family, a house, a car, my health, and somewhat of a job but I'm trying to better myself with a new career and all the rejection is making me feel even more like a failure. I tried so hard to get pregnant for 2 years and failed, now I work so hard to get a new job and fail at that too. Why should I keep trying, what is motivating me to not give up- nothing. I know I am being selfish and negative but who wouldn't be under my circumstances? I'm so tired of Scott and my closest family and friends saying "I'm sorry" when something doesn't go well for me-because I cant achieve anything I strive for. I am lost. I don't know where to go from here. I am so depressed and I cant find a single glimpse of light at the end of the tunnel. I need to do something- I just don't know what. I can't get thought out of my head. I am almost 26, married for 4 years, and still no baby and not even a good job. I had the chance to get hired for two great jobs at two great companies- and neither want me. How much more am I suppose to take? I don't know how much more mental abuse I can give myself. I wish I knew what to do...