Resentment.

Hello all, I'm new to this site. I don't know who to vent to. As a child, I was born with a cleft lip and palate and a loving mother (she loved me-and drugs) so in came my Grandparents... they took care of me and raised me when I had no one else. I was very close with them, they were my adoptive parents. Fast forward to a year ago, when I got engaged to my now husband. I was the happiest girl in the world. A month later, my Grandpa had a massive heart attack and died. My Grandma almost immediately went into the hospital. She almost died too, but came through and went back home. My Grandparents had 4 children, and 6 grandchildren. I am the only one who will help care for my Grandma. She is a christian and believes that you shouldn't sleep together before marriage; so i had to get married a month after my Grandpa's death so that I could move into my grandma's house to take care of her and still be with my husband. It was at the courthouse. No one could walk me down the aisle and was one of the most depressing days of my life even though I wouldn't trade my husband for anything. I can't work with the constant attention she needs, and she thinks that I am a "charity case" and just needed a place to stay. She is oblivious to the fact that she shouldn't drive and can barely walk. I find myself wanting a drink a bit too frequently. What do I do?