Help 😫

Just had my second son 2 days ago. My first son had latching issues and as a first time mom I won't even lie I got frustrated and quit trying. Instead I pumped for 12 months... 🥴

Well now I can't get my new babe to latch well and if he does latch it's for mere seconds. I have really flat nipples I'm assuming this has a lot to do with it. What can I do for this? I've been supplementing with formula due to well my milk isn't really in and both him and I are getting flustered.