DS is 2 next month and DH and I have started talking about TTC DC2 in the New Year. I've always wanted to have two kids and DH feels the same.
DS is gorgeous and l love him with all my heart but he was a very high-maintenance baby. Screamed for hours on end, fought naps until he ended up an overtired mess, woke every hour or two through the night until he was 8 or 9 months old. Still doesn't reliably sleep through now. I ended up with depression because of the constant crying and lack of sleep - DS's first year was one of the hardest of my life :(
Things are better now and DS has blossomed into a lovely, bright, sunny toddler but I still feel like we're in survival mode a lot of the time due to lack of sleep and time on our own together. Not even sure how we'll manage to conceive DC2 in our permanently knackered, slightly grumpy state 
Despite all this, I really want another child and don't yet feel our family is complete. But I coped so badly with DS's babyhood that I'm terrified of going through it again. What if DC2 is just as tricky, but I have a pre-schooler to deal with too?
Part of me thinks we have to grit our teeth and get on with it - it's not that I want another cute, pink baby, it's more that I want another person in our family to keep DS company and grow up with him, etc. But I'm scared I won't cope with the baby stage and that I'll geDt depressed again.
Has anyone else had a tough time with DC1 and gone on to have another? Any words of wisdom?