Trying to Understand Background Insulin

Hello,

Newly Type 1 diabetic...

I've been posting a lot in this subreddit because my doctor sucks. Firstly, I was misdiagnosed as Type II in 2017 by my PCP. He didn't refer me to an endo despite my 125lbs weight. And I was too stupid to realize I should have gotten a second opinion.

I was diagnosed by an endo in April of this year with Type 1. And due to coronavirus, he seems to have checked out. It's hard to get a hold of him and I'm supposed to be getting a diabetes educator to call me and help me with the basics.

Type 1 treatment is a lot different than my Type 2 treatment. Before, I used to just take metformin and call it a day. Now, I'm wearing a Libre CGM, taking Levemir (long acting insulin 14 units at night) and Afrezza (inhalant short acting insulin before meals.)

Well, the Afrezza brings my BG down when I'm eating and that's great, but two hours after my meal it's up in the low 200s (sometimes not that high, but still...)

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Isn't this where my Levemir should be working to bring that down? It stays there for quite awhile.

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I also heard from a diabetic friend that I should know my insulin to carb ratio. I have no idea how to calculate that. But it sounds like that would make my life a lot easier. If I'm eating a 50g carb meal, doing some quick math to determine how much Afrezza I need would be amazing.

Any help/advice is appreciated. Thank you very much. Hope all of y'all are staying safe during the lockdown and staying healthy!