Hi goingmad,
I think the anonymity of the interweb is a great resource when it comes to talking about subjects like this. I'd bet 90% of the members here have told each other things they would find impossible to discuss anywhere else. It's like a virtual confession booth!
You don't have time to wait for a pump. Your bs numbers are doing you permanent harm right now, but it's easy to see you are highly intelligent, so this won't be news to you. I can hear the groans of the other members ('jeez, here he goes again!') but your problems are I suspect almost entirely due to your 'healthy' diet. 3-500g of carbs per day isn't healthy for anyone, but for a diabetic it's more like a suicide note!
You will get a lot more info from some of the 'carbs' threads, 'success stories' etc. than I can cover here. In essence, injected insulin cannot cope with those levels of carbs. It's inevitable that your bs will be up and down like a toboggan ride. This is not your fault, any of us eating that way would face the identical problem.
You must radically alter your diet. Eliminate as far as possible all refined and starchy carbohydrates, the carbs you eat should be from unrefined sources such as vegetables, some fruits and nuts. You can eat more protein foods and fats (except the trans fats in refined foods of course.) You will dramatically reduce your need for insulin and your bs will become much more stable. Once you have that stability (a couple of days, tops) you will quickly find the confidence to lower your average bs value.
One final promise. Do this carefully and determinedly and by Xmas you can have non-diabetic HbA1c levels. Imagine that, an HbA1c of 5%! You can do this if you really want to.
All the best,
fergus