When you get new paint mixed, it is more likely to be slightly different and when you add years of exposure and aging on top of that, you are likely to get some variation. Give it some more time -- even thought paint dries to the touch in minutes, it isn't completely dry for a lot longer. Also get away from it and see if you still see it -- or better yet, have someone else see if their eyes are drawn to any of the touch ups. Clean the wall where ever possible instead of using paint. Then see what you can do to help the places that need paint. If you have a cooperative paint person at your Lowe's, you might be able to get them to help you tweak the paint a bit. You might be able to get a sample pot of a darker shade that you could mix in. I have also been known -- well, not known, but I have done it -- get out my other cans of paint or even craft paint -- those 99 cent little bottles, and mix until I get what I need. Work with small amounts if that is all you need - take a cup or jar and mix a small amount -- working with dots of the tint paints until you get the hang of it. Test on index cards or posterboard, a plain white paper plate. I haven't done it often, but it has pulled me out of a couple of cracks. Also, use a small craft brush and only fill in what is essential. Another trick I use when touching up is to feather the paint out. sometimes adding a little water or using a wet brush to thin the paint as it goes over the existing paint. That is more likely to work on your living room paint (lighter color) than the red, but I've never tried it on a strong color. On the red, I'd be inclined to put the photos back up if the nicks don't show - change out the pictures in the frames if you are happier with that. Even if you repaint, there will be new spots that need retouching when you move your things out. I've bought two homes thinking I wouldn't have to paint most of the rooms only to move in and need to paint everything. Worst case, if you feel you need to paint the LR, get the color as close as you can and let the break of the white and wood stairs provide the break you need to stop. And if you do repaint anything, leave them the leftover paint for their move-in touch ups.

Some cleaning solutions, can cause the paint to become tacky. If that is the case, there is no real cure for it, but, to sand down and repaint, and in the future, only use mild dishwashing liquid and and water with a damp cloth to clean them.

If you look at the undertones in your hard surfaces (floor and countertops) you are dealing with a pinkish beige in the floor and yellow on the countertop. I don't think it works to try and use every color on the color wheel (red-brown on the floor, yellow on the countertop, now blue yellow on the walls). So the green works with the countertop, obviously, being green walls (= blue+yellow). So you could paint the floor, like with a garage paint, that is tough as nails. Then I think you'd be much happier with your green walls. I think your undertones in your trim is throwing things off too. In fact, if you get your hands on a Sherwin Williams paint fan deck, they set up their colors in the color wheel format: purple-blue-green-yellow-orange-red) which is fabulous obviously. So you find paint that matches your fixed elements (floor and countertop) and then select colors from their "neigborhood", in your case, you'd be hanging on the yellow-orange-red side of the deck. It is when you try to match opposite sides of that paint fan deck that you run into the issues you are seeing with your room colors. White also has the same undertones. So again, if you are using a "blue" white like snowbound, you will run afoul of your yellow countertop. You might be happier with a more yellow white like Westhighland white. By the way, the green paint has a blue-ish tint to it, so a warm white, like the countertops, won't look as good. It will make whatever the brown element look tired and old. If you leaned into a warmer green, more of an olive, it would be more cohesive, but that won't address the color in the floor. You would have to "lean into" the color of the fixed elements if you aren't going to replace them. Next time you go to the paint store, especially Sherwin Williams, look at their paint chip color wall and notice the color wheel in their display. And if you are picking colors from opposite ends of that wall, just know you might have issues.

Yes, unless you can do it, youll need a painter to prep and repaint.