discouraged...

I can't even begin how I feel right now. Last night I was looking at old pictures from school and of nights out with friends. Well my husband looked at them and said you were so tiny (meaning skinny and small) And now I can't get that out of my head. I've been trying to lose weight but nothing ever helps. I can't stay motivated but I can't feel insecure about myself anymore. I have never been this overweight. I've always been 100-125 pounds but right now I'm 168pounds.?