gestational diabetes

Tegan • Australian • Taken • Mumma to 1 •
So I've just been told that I have gestational diabetes. I feel like I've let myself and my baby down and I just feel so upset with myself. 
Can any ladies who have had GD please tell me how much their baby weighed, if they had to be induced and any complications during their labour and if their baby had diabetes? I'm just so scared. I'm only 18 and my mum is very judgmental and I can't talk to her about many things so I am turning to you guys for a little bit of insight. 
Edit: thank you so much for everyone's kind responses. I feel so much better about it now and am going to really watch what I'm eating to make sure my baby is as healthy as can be! Everyone was so helpful and I really appreciate it!