Not to say that there aren't other issues at play, but it may reassure you to know that prolonged staring seems to be a common trait in Shepherd crosses. All of mine have done the same, and it's definitely a bit off-putting until you get used to it. As for behaviour, my experience is that Shepherds need to know that someone's in charge. If not you, it will be them (with all the trouble that entails). The more you can keep calm, be confident and consistent, and give clear instructions the more likely they will respond positively. Good luck!