Nutrasweet is an excitotoxin and very dangerous for the body. Probably it is the most dangerous artificial sweetener there is. Splenda is no better.
Please use stevia, which is a natural sweetener, with no adverse side effects.
Additionally, throw away your table salt and substitute Sea Salt . It is great for minerals!
Your diet sounds quite sane to me. You may get recommendations not to eat so late, but there are some people who cannot sleep unless they eat late, so whatever floats your boat, I say.