Where do you keep the plant? New growth is dying- could you give more information? How long have you had this plant?

It doesn't necessarily appear to be sick. To me, it almost looks like it's putting out variegated leaves, which some pepper varieties do, like Candy Cane: https://bonnieplants.com/product/candy-cane-pepper/

I also questioned size of pot in my original post, but didn't say that you should use smaller one. Karen is right. If you find that plan is tipping pt over, you can place a larger rock or 2 on top of the mix. I use large rocks to support newly repotted plants, but they can be good counterweights too. Or use pot that is not so deep but wider at the base, so it is more stable. Terracotta/clay pots are also more stable, because they are heavy. I use mostly plastic for that reason. I also mentioned that I would cut of leaves that are mushy - didn't say that you should since I really can't see the mushines in your photo. I keep succulents in smaller pots. Not because "they like it" as some ppl suggest, but for lack of space. If plant gets too big, I rather divide it and give away some. The reason I do not grow Aloe vera - it's leaves grow quite long... I know that pp used put some rocks or pieces of broken terracotta pots over drainage hole to prevent mix from falling out. Use piece of window screen or any other mesh with small openings. Or even piece of landscape fabric (it lets water thru), or coffee filter. Even piece of newspaper will work, but it will decompose.

Yes and no. First the excess nitrogen needs to be removed and this may sound strange to you but you should feed the microbes sawdust, ground up twigs or cardboard. Feeding the microbes a diet low in nitrogen and high in carbon will force the microbes to consume excess nitrogen in the soil to live. The microbes main diet is carbon and nitrogen at a ratio of 24 parts carbon to 1 part nitrogen and the items I mentioned have a ratio of 378 parts carbon to 1 part nitrogen for cardboard and up to 500 to 1 for twigs and sawdust. They eat the carbon and turn to the excess nitrogen in the soil to eat, problem fixed. So get about a 1/2 cup of ground up cardboard, twigs or sawdust and mix into the soil. (you figure out how to grind them up) After a couple of weeks it's time to start feeding the plants again but only with the fish stuff DON'T use the Trifecta! It was a one time application only. Fish emulsion has a 5-1-1 nutrient ratio and right now your plant needs MORE potassium than nitrogen the fish stuff doesn't have, so 1/2 of a dried banana peel will do every two weeks. Fish emulsion has 3 to 5 parts carbon to 1 part nitrogen so when consumed by the microbes they leave a lot of nitrogen for the plant to use. Adding any other source of nitrogen will be too much. But if you really want to make the plant healthy and happy get some alfalfa meal, it's rich in everything a tomato plants needs that the fish stuff doesn't. Cut the fish stuff in half and cut the alfalfa meal recommendations in half and you will never have a nutrient problem suffered by many who use pots to grow in. The plant that has already grown will never produce a flower or tomato and flowers will only appear on new growth so don't worry, and cutting off the bottom leaves didn't hurt it a bit. To be honest I never read your original post so I didn't know you mentioned no flowers, All I looked at was the picture.