Good day girls, can you tell me, my baby is 17 days old, after leaving the…

Good day girls, can you tell me, my baby is 17 days old, after leaving the hospital started colic, yesterday I bought BoBotik, I drip a little bit, I know it's possible from month but impossible, sleep is torn, he's struggling. Two days ago, his tongue was covered and there were white flakes on his gums. I read that it might be thrush, but how can I get rid of it? I feed him little breast milk and more formula with Nestle Premium Comfort, already added comfort for colic, what kind of mixture is best for relieving colic and stomach pain?