Are you eating and sleeping sufficiently? Have you had a clear and calm chat with your partner and/or close family members to say how you feel? Also, as I'm sure you're aware, low iron causes exhaustion, so you won't feel better unless that's sorted.
It sounds like you need some more support at home. I did not have any of the extra physical issues you had (though I did have lots of breastfeeding issues - blocked ducts, mastitis, and thrush!) and I really only managed because breastfeeding was basically all I was responsible for in the first 6 weeks. But, also, it really does get so much better, and I think that life is actually much simpler and easier when you breastfeed rather than bottle feed once the baby is just a bit older.
Also, on the blocked ducts, I'm assuming you've tried warm showers, warm wet compresses, and using an electric breast pump (on both sides - sounds like maybe you focused so much on one, that you let the other become overfull).some babies
What I know now that I wish someone had explained to me at your stage is that babies take a while to figure things out for themselves - it's not just you. So, the fact that the baby is crying while you try to feed is upsetting, but it doesn't necessarily mean you should be doing anything differently. If the baby is putting on weight ok, you're doing a brilliant job.
I think things are gradually easier from about 6 weeks, and 3 to 6 months is the bit where I felt I had figured out what I was doing and had some control over my life. All got more complicated (and exciting!) after that with food and crawling and all sorts of such exciting things.
But, in summary, you need someone to help you more with the baby so that you sleep, eat, breastfeed, and nothing else. It won't be like this forever, but for right now, it sounds like what you need. Oh, and I hope you have a bedside cot and aren't trying to deal with getting in and out of bed?