Do you know what the simplest diet advice that can actually work is?
Don't eat anything white
Can't be you say? Think of it this way.
Don't eat sugar, salt, refined grains, rice, or potatoes for starters
If you do this, you will likely find that the choices you make will automatically be healthier than your current diet and for most people it will lead to weight loss and better health.
There are a lot more detailed discussions on the site which you can explore.