Stand up, head high, snatch width grip, see where the bar is, now that is about your contact point with the bar when you pull through your 2nd pull.
Pull the bar to the position of where the bar will be if you just stood up.
Start with lower hips.
Yes it will feel different as you have never done it like this. This will help you lift much bigger weights later on. When you change something it will feel different and a bit awkward at first. This doesn't mean what your changing to is wrong, it just means your not use to it yet. Definitely start with lower hips.
Speed under, depth and lock out is good. Focus on delaying the 2nd pull and keeping it closer.