I will take help from sample resumes available online. Why should I pay if I can get it done for free?

No issues… you should get sample resumes and get it done for free. If it serves your purpose then so be it.
 
One needs to understand that it is an investment in “YOU”. You are utilizing Expert Services of a Professional to further your Career and take it to the next level.
 
If you, for some reason, do not want to hire the services of a Professional in that case please follow the process and not be dependent on cut and paste job. Your Resume is not a product for mass production; it is a personalized document which reflects your career path past, present and future. So, you need to carefully create that path for yourself.