Mine always takes a while to settle down too!
We've all been there with bad haircuts. At least you should hopefully be able to grow it out easily enough. My worst was when I went somewhere expensive (only place in uni town) and they butchered my hair. I had straggly bits, and areas up to 3 inches shorter then others and they thinned
it. I cried over it all afternoon.
Sorry you've had a bad experience, but Im sure you're hair will start to recover soon