There are many possible factors mostly stress and anxiety especially if anything traumatic also happen which lead to production of hormones that oppose breast milk production.

Exclusive breastfeeding is recommended for the first six months of life. Please, encourage yourself to complete it as it has many benefits for the baby. Please, also note that breastmilk is produced based on demand. That is, the more your baby sucks, the more the breastmilk will flow.

It is okay but yo can still switch to Exclusive Breastfeeding

hello Mum, First of all, you have to calm down and be very patient. Your lactation depends on your state of mind and nutritional status.

Watery pap,tiger but drink

Sorry about your experience. Breastfeeding can be very stressful and tiring. I will advice you watch this video here for best position and practises. https://youtu.be/s1gmBVrwAs8?t=9

Normally, After your baby is born, and you have delivered the placenta, the hormone prolactin is released in your brain. Prolactin signals your body to make plenty of milk for your new baby. You'll be able to tell when your milk is coming in because your breasts will start to feel full and heavy. But in some cases, breastmilk might not forthcoming. You may need to see a lactation expert. In the meantime, You might also try formula milk. Certain foods like pap might also help.