Plan help!

Howdy friends! I am 27F 5ft 6 in and currently 159 lbs. I am down from 175, eating 1200 cals a day. I feel exhausted all the time and spent some time on this sub. I calculated my sedentary TDEE at around 1768 calories a day. Does upping my calories to 1350 a day make sense/ still seem effective and efficient way to lose the remaining weight? TDEE and multipliers are a little confusing to me! Thanks in advance!