i new in freelance but i have worked on others site such as Elance , Linkind. The biggest challenge I overcame while growing my consulting business wasn’t convincing my clients to pay me more money or chasing after invoices. Rather, the biggest challenge was internal — convincing myself that I was worth the rate I wanted to charge and raising my rates from $25/hour to $100/hour, $1,000/day, and $5,000+/week. And you know what? As I’ve increased my prices, the clients I’ve worked with have turned out to be better, more receptive to my advice, and see us as partners instead of viewing me as a laborer on their project.