Risky dieting, could it mean life/death??

[maeagle77.xo]

Today so far I ate

-english muffin (120 calories) with strawberry preserves (50 calories)

-hot dog (150 calories) with melted cheese slice (60 calories)

-yoplait light yogurt (100 calories)

did i eat well today, plus my dinner is going to be a subway 6" turkey sub on white pread with provolone cheese and lettuce and italian dressing. did i eat well?