Too much milk?

Hi first time mum here 👋🏼

My baby is 12 days old and when I feed her. Sometimes she is a bit fussy to feed. In the struggle to get her to latch, milk literally squirts out everywhere. I have to use a flannel to cover my boob until she decides to go on. Once she’s on she only stays on for 5-8 minutes before letting go. When she lets go she still has a mouthful of milk that she spits out. And my boob is still leaking after she is done.

Do I have too much milk?