opinions please?

So I recently gave birth to my first. I am NOT ttc number two. I'm breastfeeding and on the mini pill but I know regardless there is still a risk. What I am asking is, how was the second pregnancy for you mom's? Was it worse than the first pregnancy? Was it easier? Are you struggling with having two kids? Is it worse the closer in age they are? I asked my sister because she has a 4 year old and an almost 2 year old and she is not having a good time since her 4 year old doesn't want to be potty trained. Please give me your opinions.