Busy.
For web development, there was pretty much a neverending workload and opportunities... Time management is important. However, I am currently in the process of switching to cyber security, specifically malware analysis and reverse engineering. My goal and gut is telling me that with the current threat landscape, doing this specifically full-time as a freelancer on a consulting basis is definitely possible. However, I am not quite over the hurdle of the initial "break in" phase of this, so a lot of my time is spent researching and learning in order to be prepared to face the most intimidating and insidious malware.
I think if you are going the web route, you'll have no problem being a full-time freelancer as long as you market yourself via networking and attending local events. Try to be the word-of-mouth guy rather than relying on random people online. Also, watch the financials and know when to say no: Tons of people out there want free work and are frankly looking to rip you off. They may not plan to do this, but they end up trying to do it. Be wary of that.
If you're on LinkedIn, spend time adding key people in your area... I get tons of messages from recruiters wanting to contract me with the companies they represent. In fact, sometimes I don't even reply and they contact 3-4 times lol!