I would recommend doing something that distracts you from it (extra work, writing, drawing, etc) writing down the cons (no pros) of it, definitely think of what you’re gonna say/do before doing so. Just random things.
First of all, insulin is quite expensive so they’ll have to make some sacrifices to afford it, along with other supplies like syringes, alcohol swabs, testing supplies, treatment for low blood sugar, etc. Next, it makes it difficult to see a doctor and make adjustments to your treatment plan.
Yes, you can even get caffeine poisoning, Good Luck