Hi Ellie. I have wanted (and needed) a pump since 2006. I finally got it last week and am starting insulin through it on Tuesday. It's been a long wait and I feel your pain, but there is hope!
The turning point for me was moving to a different area and transferring my diabetes care to a new hospital and new consultant. My previous consultant didn't like pumps for whatever reasons and I'm still really angry that he blocked me getting the care I needed for several years. My new team are much more forward thinking and have been incredibly supportive.
I just wanted to say I understand your frustration, and you will get there in the end!