How do I maintain a caloric deficit?

So, I’ve heard about having to go on a caloric deficit to actually LOSE weight. But how do I maintain it? I don’t have abundant knowledge on this, so I don't know. I have in mind to eat a range from only 500-700 calories a day. But how do I BURN that much, or even MORE? Plus, if I exercise at (let’s say) 3 PM, I have to eat after exercising too, so aren’t I just gaining all the calories I burned? HELP!
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+1 y
Guys, my calorie deficit is not 500-700. I just added a number that I thought wasn’t too large and stuck with it. I’m currently counting calories right now.
How do I maintain a caloric deficit?
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