I think we've had this conversation before so I will try not to repeat myself lol but I am not what I guess you would call a natural mother, I was desperate to be a mum but when it happened I found the first year SO hard, however, the first year with my second was nothing like my first and he was a horrific sleeper the first 6 months, I was just so much more relaxed because I knew everything was a phase. It has gone SO quickly I can't believe he turns 1 in 2 weeks, he just kinda slotted in. I really, genuinely, don't find it much harder having 2 in fact I would say in some respects it is easier than the one as they entertain each other, I feel I am more able to keep up with the house now with 2 than I did with just DS1 when he was younger.
The hard part I would say is being back at work because DS2 is quite a sickly baby and has meant ive needed to take quite a bit of time off, thankfully DS1 is a freakishly healthy child, I can count on one hand how many days off he has needed in 3 years at nursery, if he caught everything DS2 did I imagine this would be pretty hard work.
To give some context I have a 3 year age gap, we live away from family and hubby has to go away with work a lot.