When it rain's it pours

We got into an accident tonight.....I just dont understand???? WHY???? My mom, Makaylin and I had just went grocery shopping for some healthy food and Jason's perscriptions. We were stopped at a light about 5 minutes from our house when a lady slammed into the back of my car. We flung forward and slammed back into our seats. Today was our first day out of the hospital and there we were back in the ER again. Someone please tell me why? We are ok and back at home but my goodness. The lady that hit us turned around to tell her 2 young kids something. It happened so fast. She had to have been going at least 40mph. I am just guessing. My trunk is all smashed in, it doesnt even close. I just keep wondering when things will start looking up for us......I dont know how much more we can take.