@Heathero
Glad ur ok even with a higher bg this morning. It takes time, patience and loads of mistakes along the way using this way, that way, until we get to grips using a pump ok. I've made the same mistake as you, so don't feel bad. You have to learn from mistakes so that you dont make them again (with any luck that is) lol.
Next time, detach for no more than 1hr and eat something sugary if bg is low and then if loads of insulin is still active, eat something carby to use up the insulin. I once did a prime of the tube and forgot to unclip from the set so had about 20u go into me and had to work out the amount of carb I needed to eat to use it up. It was nice to sit down with a bowl of tinned rice pudding but still lol