I have my same old answer you are probably tired of hearing - logging helps. I can see how much protein/carbs/fat I have consumed as well as a few other things if I choose to see them like fiber, sugar, salt and maybe some vitamins (I know it tells me when I log something that I have enough vitamin C). I try to always make sure there is fruit (no problem for me; I love fruit and always keep some around at home) and vegetables (same, but requires some thought/prep) in my diet. It would also help you with getting up to a healthy level - you should always average more than 1200 a day for good health.

If I have any ground to make up, I usually treat myself to a sweet snack or two. If you want to lean toward healthy, a handful of raisins and nuts will go over 100 calories and I can eat a few handfuls. I consider few foods to be truly unhealthy; there are unhealthy mixes that have too much of one thing or another (like too much fat or salt during one day) but very few single foods.