How to start on machine learning

Hello! I am a new partner in the kaggle community, first of all i apologize for my english level. What i would like to ask, is about how to start on machine learning, actually i am working in a research center on the basque country, and i would like to introduce myself in this area with the target of realice a PhD in the future. I have started with Andrews Ng course on Coursera, but i think that i have not the knowledges to start a competition in kaggle, for example… so i would like to find a way to start. Bests

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