Amount of time between upping calories?

so I wanted to slowly start upping my calories to reach maintenance, but I honestly feel like I need a lot more right now. I was at 1200 and moved to 1320. That's about 1 lbs weight loss a week. If I move to .5 though it jumps to over 1500 Cals. I feel like I shouldn't make that drastic of a change but a girls gotta eat! I also have a little bit more fat to loose but I've decided to soley focus on strength training. Im 5'5" 118lbs. Any advice?