BMR, TDEE, etc help

I have been reading a lot of threads on here about this topic and a lot of them are confused people such as myself. I'm just wondering about my calories. I am 5'8, 220 pounds, 47, female. I have my calories set for 1500. I run 3x a week and do JM Shred every day usually. C25K I usually burn 200 to 300 calories and Shred 200 to 300 calories. I usually eat my calories back or most of them. Is this enough calories...too much calories? What do you think....sorry if this has been discussed to death...

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