Hi, wanted to post as I was in your position 6 weeks ago so it's very clear in my mind how painful it is and how disheartening it can be with everyone telling you the latch is 'beautiful'! This is clearly not the case if you're in pain with damaged nipples!
My baby is now 11 weeks and has always had a shallow latch, hence the nipple pain and damage. Tried lots of different positions and various techniques to try and improve latch to no avail. After feeling I was getting nowhere with mw and hv (think they thought I was just being a wimp!) at 6 weeks went to see a private lc who diagnosed posterior tongue tie. We got this snipped but unfortunately didn't lead to any feeding improvement.
We kept going switching between some bf, some with nipple shields and some expressed bm in a bottle. Think I was quite lucky that baby would switch between these without too much problem. I was worried that shields and bottle would make original latching problem worse but tbh it was the only way I could continue with bf at that point!
Felt v upset after tt snip made no difference and thought bf might be doomed for us. However over the past 3 weeks there has been a gradual improvement and now we have been feeding over a week without shields or bottles and my nipples are almost healed!
The things I think helped are: going back to biological nurturing and letting him latch himself - took a lot to let him do this bc of fear of the pain (with help from hospital bf specialist who I only found out existed a few weeks ago!) some cranial osteopathy to release some of tension in his jaw; and that he just got bigger and a bit better at feeding, it just took a few more weeks than most babies.
These are what worked for us and there will prob be different things that work for you but there will be Something that does! Keep asking for support wherever you can (hv, lll, bf cafés etc) although this can get frustrating you will find someone who can help.
I think also I was hoping for one magic thing to make it all better and actually it's been a case of things gradually improving and sometimes a sense of going backwards again. Bf is by no means perfect now, it's still initially often painful and latch still shallow but bc he's latching on himself think he's more relaxed and therefore less bitey. However it's so much better than it was and I'm so glad I managed to persist with it.
You've done such an amazing job to get this far when it's been so hard and I really hope you can access some good support soon and keep going!
Good luck!
Xxx