Firstly remember that you will look different to yourself because you notice the finer details - other people won't. Especially if you did the cutting yourself. Anyway, I'd go to a salon. They can do wonders and yes they might cut it shorter but then just add extensions. You'll get used to it and eventually your hair will grow back. Just hold in tight. But trust me, you'll feel better after a salon has dealt with it regardless of the aftermath.