Also type 2 for 8 years ... on 2x500 metformin (down from 3 by reducing carb)
What are your BS readings?
HbA1c
bedtime
overnight fasting
1 hour after food
2 hours after food
You should be testing now you are on insulin, not just routinely, but before driving & sport.
Test strips are free on prescription.
What is your diet? If veggie means lots of *complex carbs, then we would recommend a radical reduction in carbs - say down to 1/2 or 1/3 - & make up with other veg & protein. I did that & don't feel hungry. And I have lost a stone, down from 13, and before I started low carbing I was getting serious leg pain which was affecting my activity. I'm fully active again. I snack on nuts & cheese.
Hope that helps - the more info you give us, the more we can help.
*A vegan leaflet I got pointed out that a chip butty was vegan!