I for example, frequently regret that I never finished my degree. So if I stopped doing that, I see that writing doesn't require a degree of any form. It is the ultimate in reward for merit. No piece of paper on the wall is going to make you a good writer (though the learning to get one might be useful in your writing).
All of the "day jobs" I'm applying for these days have a minimum degree requirement because they are in the IT field. Employers expect candidates to have a four year degree at a minimum. Without one, I'm handicapped going into the process.
Where I excel, however, is in the amount of experience I have and my ability to communicate. So many of those folks with four year degrees are like the folks I met when I was in the IT program at the U; they could do calculus, physics and programming to beat the band, but they couldn't write a paper to save their lives.
So, not regretting getting a degree opens up all the time spent doing it for writing. As for day jobs, not having a degree is a hurdle, but it also means that, having cleared that hurdle, I'm in an advantageous position. My experience is weightier than any education.