Wine, not whine. Haha
Seriously though, it does get over whelming and scary. One day at a time, one meal at a time. Your body will need time to adjust and numbers might not make sence. Do the best you can, don't beat yourself up.
One thing I found very helpful was to log food, insulin doses, time of day and figure out what works for you. Low carb keto keeps me steadiest but others manage with carbs somehow. You will find your way, it just takes time.
One of the best things I found was this forum. So many smart intelligent people who have a multitude of experiences. Stick around... Best thing you can do