Hi
@emt1992 and welcome to the forums
It sounds like changing pumps is very stressful and I feel for you, but as I'm on MDI I'll let the pumpers encourage you about that.
I've been T1 since I was 8 in 1970 (so 53 years) and I can assure you that I've had some periods of truly atrocious control (particularly in my pre glucometer teen years).
I did find my weight went up after childbirth but recently have managed to stop the increase and achieve a small reduction (from obese to overweight) by a combination of lowish carb, exercise and watching the cheese and alcohol.
As far as my diabetic control goes, I have good and less good days. When I have a bad day I just try again the next day, it's all you can do.
Yes there is always hope. If it's any consolation one of friends had a father who was T1 from 2 and he lived to see his grandchildren, despite the fact that he was diagnosed decades before glucometers.
Are you able to talk to someone about your fears, it can help? If not, these forums are a safe place for you to vent, but it can help to talk to someone face to face.
Virtual hugs and enjoy your daughter while she's young. Before you know it she'll be a stroppy teenager and you'll be longing for the days of toddler tantrums.
(My son and daughter are adult now, and teenage stroppiness is long behind them.)