Definately give it a go again, you have nothing to lose! I had lots of problems with DC1 and felt a failure as only got to 8 weeks bf and was mixed feeding. It really stressed me out and I was determined to make it work 2nd time around..
However, with a toddler and severe cracked and split agonising nipples and a hungry baby and demanding toddler, I gave up after 2 weeks as was slipping into a very distressed place. However, I look back and think I really tried both times (visits to bf clinic, doctors, HV, family support etc etc).
If I had a 3rd DC, would I try BFing again? Absolutely! I know plenty of people it worked really well for, I just had to acknowledge to myself that for various reasons/issues I couldnt manage to do it long term for my first two.
I had to learn to take comfort from the fact that even though I couldnt bf as long as I'd like, there are many other ways I can be a good mum to my DC(food&nutrition, love, fun, care etc).
Research any BF clinics in your area and make it clear on your birthplan you would like help with BF at the hospital/home birth. Try and get lots of rest and drink and eat well in those early days. Will your DC1 be in any childcare so you have 1-2-1 time with new baby to help establish bf? Ironically, my milk supply was much better with 2nd which I am convinced because I didnt get out of bed for 3 days as so keen to rest and establish bf. 1st baby I was up and about too much on hindsight which I don't think helped.
Wishing you all the best with your new baby and really hoping bf works better for you this time round.(but if it doesn't - don't beat yourself up!)