Calorie question, make drink into slushie?

I was just wondering, if you were to make a drink into a slushie.. for example you have juice that is 100 calories, and to make the portion a bit larger you add ice.. Does that affect the calorie intake? I'm trying to loose weight I'm 15, 5'2 280 pounds.. to be honest, this is really hard for me... any tips, please share.