I remember in school having a 7 yr old girl who'd had a VP shunt revision. She was my only peds pt (no dedicated peds floors at the hospitals I had clinicals at), so I didn't get a lot of practice.
Anyway, a challenge that I noticed (and have noticed in the years since with my own 5 children): sick children are not themselves, and don't always cooperate! I remember trying to do a neuro check on this girl...she would neither speak to me, nor do what I asked her to do. Looking back, I know she was neuro intact -- she just didn't want to be assessed.
Her mom stepped in to help me -- and I realized that is okay! The parent(s) is with the child most of the time, nobody knows that child better, the child inherently trusts them (in healthy families anyway), and in the case of chronically ill children -- as this girl was, having hydrocephalus from birth -- the parent knows the difference between that child's normal-sick behavior and abnormal behavior.
Don't hesitate to include the parent(s) as part of the care team. It's not cheating, any more than including an adult pt as part of his/her own care team.
Talk to your clinical instructor. Their job is to help acquire knowledge and ensure your competency. Plus, they KNOW that unless you were an LPN you have no nursing experience. If you were fully competent now, you wouldn't need to have clinicals.