No you are absolutely not alone at all in this. I completely sympathise. I really thought last year that I'd be a size 12 by this summer. I don't know, maybe I'll make it by the end of the summer.
I am proud that this is the first year in 10 years I weigh less than the year before, instead of bigger. I thought that at this weight I'd feel so much better 40 pounds ago. Guess what? I still feel fat. I still feel like a heifer. I don't know at what weight I'll feel slim and just hot because it's hot and not because I'm too fat.
It's awful. Everyone looks forward to the sunshine. I can't bear it. I don't want next year to be my normal summer, I want it this year. But the sun has already come out and I can't wear a skirt because my legs will go red raw with rubbing off one another...
Please use these sunny months as best you can, fish and salad, fruit and cereal, eat seasonally and fresh, and start exercising, just do a Leslie Sansone video 4 times a week. Try to be determined, try to think of me and all the other ladies who feel as you do, don't get down, get your body moving again. By September you can be 40 pounds down or the same weight. Choose to use this weather in a positive way and make the summer memorable for being the summer you started your permanent health kick.
I feel for you, I really do, more than you realise and there are so many more who feel the same. I wanted this summer to be my kew dress summer, at this rate it'll be next year before I get to buy those pretty dresses. They may go up to a size 16 but I am 5 foot tall so look like a barrel. I want the size 10 kew dresses, no more settling for sweaty polyester trousers. Maybe I should use the fed up feeling to spur me on...
Don't allow yourself to feel the same way next year, start now, you can use these feelings to commit yourself to a healthy body, start now and next year it'll be your dream summer, this summer half the dream. It's better than the alternative... ;-)