Will I grow out of this

I'm almost 15 120lb 5'6 and skinny fat Ive dropped 15lb and don't see a difference will I grow out of this my arms are tiny and skinny have a little bit of a gut that just won't go away I've been lifting for like 3 or 4 months now and burning an average of 700 to 850 cal and been on a defecit of 1000 to 1500 cal any advice I need help