latch still needs Improvement

So my son finally started nursing From Me A little over a week ago I'm still dealing with very sore nipples and some cracks and bleeding spots to I've been to class I need to go back to breastfeeding class again to see what else I can do he likes to have very shallow latch which is our problem I have to remember it will get better because at this point every time I feed him I dread it cuz I know it's going to hurt but I will keep it up this boy won't get anything but boob juice for me