Moms of multiple babies

I have a one year old who was the most difficult baby for the first 11 months of her life. With that being said I love her to death and wouldn’t change her for the world. But because I had such a rough time with my first I’m terrified to start over again.. moms with more than one how do you guys manage? If your first was difficult how was your second? I specifically want 3 kids but I’m just scared. I want to know how do you guys manage mentally, physically, and financially with multiple babies. I want them all close in age. My husband want to try maybe in January but I may be pregnant now so im having some anxiety.