The key question in my mind would be how predictable is the flow of WordPress projects? Is the flow steady? Also how much sales effort does it take to land the

The key question in my mind would be how predictable is the flow of WordPress projects? Is the flow steady? Also how much sales effort does it take to land the projects? If the flow is reasonably steady and you know where and how you would market yourself and can discipline yourself on a sales process, it would seem you are ready to make the switch. Another question you could ask yourself that might help clarify the situation is this: If I quit my full-time job and pursue the web design projects but find the flow of work is too uneven, how hard will it be to find a new full-time job at comparable rates? If you are convinced that it would be relatively easy to go back to full-time work if needed then make the jump to freelance work. Also consider cost of living. Are you able to live on $500 to $600 a month, or do you need the full $1100 that you are currently making?