I would suggest to go for it, try it, see if you like it, you could always go back to full time if it doesn’t work out.
IMO, I would not suggest it if you don’t have at least around 8+ years of solid experience first (ideally from consulting, or have a technical background, or a niche skil-set).
It may be a little rough getting your 1st gig, and you may hit some lulls along the way, but if you could use some independence in the work and projects you decide to do, maybe this is it.
2 good conversations I had with independents this past week:
Salesforce Architect – “Chris, I’m taking the month of May off to go hiking and will not be available”.
Pardot Consultant – “Chris, I’m currently working from Bali so only available for remote projects”.
That’s nice – they have the ability to depict how they spend their time, and it works for them…
If you’re not sure, post your resume to Dice (while still working), see what happens, it might be the calling you were meant to pursue.
Just step on the gas, don’t get stuck in the mud.