I have completed the following through courses at coursera:

R-Programming, Getting and cleaning data – John Hopkins University
Introduction to SQL – University of Michigan
Managing Big Data with MySQL and TERADATA – Duke University
Data Visualization and Communication with Tableau – Duke University

I am currently working on python courses. So i think i have got the basics covered. 

I have two questions:

1) what next to study? I am having a hard time to decide. just need a direction

2) given that i have no experience, can i work as a basic freelancer to develop and practice these tools i have learned or i should learn more in this field and then i can execute?