Help with user accounts in wordpress

Avg Bid (EUR)
Project Budget (EUR)
€30 - €250

Project Description:
Visitors go to my Wordpress site. They should register them as a user. They get a user page there they can upload a youtube link and information about them. Other visitors/users go to the site there they can vote on the users links and on the last day of every month we got a the user with the highest votes. He/she will be the winner.

I don`t know how to do this.

Skills required:
HTML, Javascript, MySQL, PHP, Wordpress
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