Hello,
I would suggest you that you can go for this course via online. Because time is saving and you can learn it letter also because they will provide every study notes and video which you can download. So many online platform offer this course. They charge some amount of money and you can teach digital marketing from your home. Internshala one of them. You can go from their website and participate the course. It will be minimum 3 months course.
All the best.
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