Figure Drawing critique

https://ibb.co/nqmGsxJ9
https://ibb.co/b5pnPLVX
Thsese are 1 minute.
Im struggling to improve. A lot of the time i feel pretty panicked as time progresses through my exercises.
I may be looking at the reference too much. I know i place the head wrong. 
I'm wondering if i need to try studying proportions again? 
My study regimen is to look at reference, do lines to warm up, then i jump into one minute gestures. 
I watch tons of videos on it and have many books, but i feel stuck.