Terrible 2s and 4s?

Life with a toddler is hard and it is even harder with a almost 4 yr old. Hadley is into everything and has so much attitude and an opinion on everything. She is a climber and that is driving me crazy. She can literally climb walls. I am exhausted lately. Trying to keep up with them is starting to take a toll on me. And the NEVER nap. Working on starting the day earlier in hopes that it helps. Also going to start doing says were we take Hayden OR Hadley to do something. I am hoping this helps or maybe when Hayden starts Pre-K. I just know It is getting hard to keep up.
Hayden is throwing 2 yr old fit and hitting and saying "no" and back mouthing. He has even bite the last few days. And all day all i hear is "mama this and mama that" I think he needs more attention but that is hard with chasing Hadley and being on top of her. She is still nursing too so she gets mommy time that way. They both have had issues with sharing me Brian and I. They seem to think we are not the others mommy or daddy.
But enough negative! Hadley is getting big! she loves playing baby dolls, she feeds them, lays them down for naps, wraps them in blankets, rocks them and kisses them! it is cute! she is also into dress up. she loves wearing everyone's cloths and shoes. Especially Hayden's undies and shoes lol. Hayden is still into monster trucks. Although he has become infatuated with transformers :) it is cute when he says "transformers robots in disguise" <3
Brian has started a new job, better pay and better location. It has been nice having him home around 4 and not6/7 :) I am doing great with scentsy! I love it it is so much fun. I take my CPR instructor class in July and i absolutely can not wait! I am so excited! With that said it reminds me i need to take some online course from AMT for my MA license lol. Ill get on that tomorrow :)