Details are different, but you are in the same space I was about a year ago. That's when my mental wake-up call took hold and I decided that haphazard control was no longer acceptable.
You're at the start of a journey. Everyone's path is distinct and individual BUT -- from my own recent experience, and that of the people who contribute to our community conversation, there are three things I can tell you with certainty:
(1) Take small steps. Don't try to conquer this overnight; that's a recipe for frustration. You're going to be dealing with this for a long time. Learn a little bit each day.
(2) It WILL get better (and easier) as you go along and understanding increases and confidence grows.
(3) This one is REALLY important: don't get emotionally whipsawed by the mental roller coaster. When something doesn't go the way you expected, don't react to it as evidence of failure; use it as a clue to learn from. We all have days when this disease behaves the way we want it to, and days when it acts like a child throwing a tantrum. And -- most especially -- don't ever fail to acknowledge your own accomplishment when you get it right.
All of that being said, there are some outstanding resources available to help along the way. One of the best is this community. The wealth of shared experience here is mind boggling. Tap into it.
There are hundreds of books written about managing diabetes. A few of the very best are listed below. All of the authors have Type 1 themselves -- they're not just third parties giving advice but people with skin in the game.
Richard K. Bernstein, Dr. Bernstein's Diabetes Solution, 4th. ed. (New York: Little, Brown and Company, 2011)
Gary Scheiner, Think Like A Pancreas (Boston: Da Capo Press, 2011)
Riva Greenberg, 50 Diabetes Myths That Can Ruin Your Life and the 50 Diabetes Truths That Can Save It (Boston: Da Capo Press, 2009)
Riva Greenberg, Diabetes Do’s & How-To’s (Brooklyn: SPI Management LLC, 2013