If baby is gaining weight - passing urine and stools well then not a major concern.

Try calm , Ill lighten environment, white noise and your soothing sound can prolong feeding duration and decrease crankiness

For better positioning 1. Try to relax and sit in an comfortable environment 2. Try reclining position, many recliners are available online For latching: Best is to consult a lactational consultant in person. Check if the baby's chin is touching the breast, mouth is wide open and lower lip is completely everted. A lactational consultant can help in reviewing some common problems like inverted nipple, retracted nipple or just improper latching

1. Keep yourself hydrated, take a nutritious diet rich in iron, calcium and good fats including milk and milk products, paneer, eggs, vegetables, nuts, fruits 2. Ensure every 2 hours feeding for good milk output with atleast one time of night feeds 3. Avoid bottle feeding to prevent nipple confusion 4. Keep yourself calm, stress  causes difficulties in feeding 5. consult a lactational consultant and pediatrician to monitor weight and suck of the baby. Beware of danger signs: lethargy, refusal of feeds, excessive sleepiness