@pheonixflame well, for most Type 1s, the main point of professional contact will be the Diabetic Specialist Nurse, or DSN. This varies depending on the amount of support you need and how busy they are, but you might see him or her once a month. They will adjust doses of insulin, and answer any day to day queries you might have. Once a year, probably, you will see the consultant, who again might adjust insulin doses, but will also do thingns like checking your feet for signs of nerve damage, and generally assess how you are getting on, including looking at blood test results, especially Hba1c, which is a measure of how much glucose has been in your blood over the last 3 months (it might be 6, can't remember off the top of my head). Once a year you will also have an eye screening for retinopathy.
Honestly, most care for Type 1 diabetes is self administered. You have to manage your own injections, probably a minimum of four a day, and most diabetics not on a pump will take two different kinds of insulin, a short acting one with meals and a longer acting one at the beginning and/or end of the day. Knowing how much insulin to take means carbohydrate counting, so calculating the number of carbohydrates you are about to eat and then applying the ratio of how many units of insulin you need for every ten grams of carb - this ratio varies from person to person. If you are above the 4 - 7 mmol/L range, then you might need to add extra insulin to bring you back into range, which is calculated from a separate ratio on the basis of your insulin sensitivity.
A big thing for diabetics is testing blood sugar levels - as a minimum testing four times a day, perhaps as many as ten. Really, you need to at least test before meals and then 2 hours after, as well as before bed, also before driving, or if you are feeling unwell. Sometimes you might have hypos, where your blood sugar falls below 4 mmol/L, which you need to treat with some quick release sugars, like jelly babies or lucozade, followed by some longer acting carbohydrates once you are back in range.
Diabetes care is basically a constant balance of testing and correcting to try and stay within the 4 - 7 mmol/L range, and the vast majority of that is totally independent of Health Care Professionals, just because of the intense level of management required on a day to day basis. It never stops, you are always thinking about what doing this or eating that might do to your blood sugars.
Hope some of that helps