As someone mentioned in your previous thread, beadboard. It can be glued on and will look nice in your kitchen.

This may be a stupid question, but is there any chance it's plaster scored to look like tile? My house had that, and it kind of looked like painted tile. Just wanted to check if that could be the case for you?

Caligirl5.. ya know, I kind of wondered that but couldn't really tell. Then again I don't know enough to be able to tell. Anything I could look/feel for that would tell me which it is for sure?

Mine felt like the plaster in the rest of the house, just with lines in it. I'm wondering about yours, because next to the range it looks like there's some variation in the height, more like they could be individual tiles...hmm

To your question, I think beadboard would be nice. Also it seems like you could just paint it a better color.

I would do a quick and easy paint job over it in the color you want until you can rip it out and start over to do it the way you want. It could look great for $50 and a few hours of work.

After looking more closely at your photos, the problem you are going to run into are things like window and door trim. I can't tell if there is trim on the window in the yellow nook. Assuming there is, anything you put on top of the tile could end up too deep for the trim. Assuming there isn't and it is tiled to the window, you would have to figure out a way to trim out the window to hide the tile, then do your beadboard.

I understand this is your first home and that you don't want to rip things out but, you don't want to make it worse than it is by kinda sorta fixing it. I would test removing the tile. If it comes off pretty cleanly, then I would remove all and skim coat to fix the walls. If not, I would remove both tile and plaster and drywall. It will be labor intensive, but better to do it right the first time and improve the home, than to do something that will only make it worse and possibly decrease the value.

tile stickers? as a temporary solution? but you'll need a lot of these. or alternatively you can disperse some in between

https://www.etsy.com/search?ref=auto1&as_prefix=tile+s&q=tile+stickers&order=most_relevant&view_type=gallery&ship_to=US

Other than beadboard, how about faux whitewashed brick?

countertop and backsplash replacement on this kitchen could possibly be opening a can of worms. Proceed with caution. I'd try paint before removing anything.

I think it has great potential. Research converting a closed cabinet to open shelving for the one that goes out over the peninsula. A cheap fix would be to change out the hardware to something less bold. Or, on the flip side - hinges that blend, but some fun colors or crystal for the knobs. If you make a cabinet open, look at painting the back of the cabinet for some interest. If you are adventurous - perhaps embrace the yellow and have fun with colors! You are young...enjoy the freedom.

I agree you need to be careful of lead paint. Even stripping the old paint off can expose you when sanding the stripped cabinets. There will still be lead which permeated the wood.

As for the yellow tile walls, I think beadboard paneling or some other MDF decorative paneling would look great. You could even install something like this to mimic plank walls

I think it has LOTS of potential. You might want to just give the walls a quick coat of paint and complete any repairs, then wait a few years and do a complete remodel. In the meantime, take an adult ed woodworking class and grow your DIY skills. That kitchen would be a great candidate for IKEA cabinets, and renovating would allow you to get your range out of the corner and increase functionality.