How much should I exercise?

I want to lose at least 25-30lbs by the new year. I'm 5foot 6 about 175lbs.

I currently do martial arts 2-3 days a week for 1 hour, and do strengthening and run 1 mile 3-4 days a week. I have a good diet ( I eat fruits/veggies/some whole grain/ water), but also do eat bad foods about once a week. (probably around 1600-1700 calories a day)

how much do you think I should add to my workout to be able to reach my goal? Or any tips for me?

Also , do you think (on my current workout) if I can reach my goal of 25-30 lbs by new years?
Yes you can
No you cant
Depends/maybe
Other (please explain)
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How much should I exercise?
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