Baby sat my nephew and he almost got hurt. I feel so guilty!

Over the weekend his parents went for a date night and I took care of him, he is almost 2, and mind you I have no kids. I’ve never babysat. So I did my best, I even played shows for him, rocked him to sleep, he fell asleep on my chest. It was the cutest. Anyways, after he woke up I decided to put him in his stroller to take him for a walk. When I sat him in the stroller, as SOON as I did he slid down because he didn’t want to be in there and the part that blocks the babies from escaping was at his neck and his feet were dangling and he was stuck. He started screaming so loud and I immediately entered a panic. I legit thought he was going to die!! It looked like the barrier part was choking him ( he was screaming so I know he wasn’t choking ) but it was blocking his head from sliding down. I couldn’t get him out because he slid all the way down I couldn’t figure a way out but I think the panicking didn’t help. I yelled for my dad and he ran out and helped me push him from the bottom up and I grabbed him. I was shaking and crying for an hour and I felt so guilty… like horrible!! I didn’t tell his parents but I feel so bad like maybe I should 😞 baby was fine though and is fine.