I can relate. In July I'm going on 20 years with this pain in the backside to live with. It's okay to get mad once in a while, you have the right to. Though often anger will be my only sign of a low, if I'm lucky to have any symptoms anymore. Nobody's perfect, and sh!t happens. Just have to remember the consequences so you don't do it every time, it can be a hard habit to break if you get stuck in the rut and do it every time. As a teen I'd do it with a huge bowl of cereal, then feel like death warmed over - I avoid cereal now, can't stand the thought of it now... nor orange juice and peanut butter & jelly sandwiches. Urgh! Even the thought of them turns my stomach.
Sometimes even without overreacting you can have a low hangover. I use to find N had the worst hangover effect if it caused a low back in the day. Novolog for me has a worse hangover effect than Apidra now, too.