Parenting siblings more than 5-7 years apart!

Collins
I have a 10-year-old girl and a two-year-old girl. It has been the most few difficult months of my life pertaining to the behavioral issues because of the developmental differences between my daughters. And have you moms out there have any advice is to get as far as parenting siblings who are further apart in age.? I would so much greatly appreciate it. Good luck and all your glow adventures. I wish you all only the very best. Sincerely your Glow friend....