[ William takes the box from her so she may stand with little issue. In fact, he'll even hold an elbow out for her to pull herself up on. ]

Honestly, I can't comment on your acting ability because I've no reference. However, this man sounds as though he shouldn't even warrant attention from you.

With that in mind, I will give you my first bit of advice in dealing with your lack of self confidence. Other people's opinions of you should mean nothing, unless it will help you better yourself.