@handicapable , I think you're going through a stage which many newly dx-d go through. Not criticising you at all for that - we all do, I did - it's perfectly understandable in the early days.
When I was first dx'd, I was totally paranoid about the refridgeration thing. I'd be eating out, and asking waiters to pop my insulin in the fridge.
Time went by and I learned more about it - insulin is fine out of a fridge for extended periods, air bubbles aren't much of a problem either provided you do an airshot to get rid of the bigger ones.
One of the most important things to learn in these early days for you is that "accuracy" in a T1 context doesn't actually exist.
You'll be told that it's 1 to 10 or whatever, and you might expect, naively, that that ratio will work, avoid air bubbles etc. etc.but the savage truth is that as soon as you start injecting insulin and eating food, they will be subject to lots of biological processes which we can't see, measure or control.
That means that ratios, the sort of certainty which newly dx-d are seeking, will often not pan out that well.
The trick, though, is to accept that this is an inherently unpredictable condition, and it needs some input on the fly.
Libre and cgm helps shedloads with that - I made a careful calculation for lunch, then a while later it looks like I got it wrong, so I'll fire in another 2u or 5g to nudge it back into line before it goes out of range.
Not a failure at all, just me responding in real time to a constantly moving unpredictable situation.
Many of the dsns and docs you will meet are not yet familiar with this stuff. Stephen Ponder's book Sugar Surfing is a good lead into it, also William Lee Duboui's Beyond Fingersticks.