First off I would encourage you to research here and elsewhere about different UX training providers. I recently graduated from Career Foundry in the UX program and have written my thoughts about the program here on this site (sorry I don't have a direct link for you)
As you probably know, Career Foundry offers a "get a job you love in 6 months" money back guarantee, I believe some other schools do similar offers. Location is going to matter but having two degrees, some HTML/CSS/SML knowledge and a project management background I say your chances are looking good but yes indeed it's all about the number and quality of projects you can show in your portfolio and your networking skills. As you are still under 40 I don't believe age is going to be a factor against you either.
At the completion of the CF course you will have one major project to show off in your portfolio which you will be working on throughout the course. Right away you can see you are going to need to find other projects to work on, if just for your portfolio. Try and get at least 3 projects in your portfolio even if they are student projects is the advice I've seen given out.
These UX courses are not inexpensive with a few exceptions such as Dr. Travis' course offered through Udemy which right now is only $35 or $50 - something in that range. There is also Lynda.com, treehouse and many other online sources of training in UX that are not necessarily in the category of an extended "bootcamp" like CF or General Assembly or others.
I have heard stories of people training in UX or UI getting job offers even BEFORE graduating from their bootcamp but you can't count on that happening to you. All in all, I have no worries about your prospects, go for it! Remember, self-study is an equally viable route....employers don't really care all that much about IF or WHICH program you graduated from, it's all about can you do the work? Can you show similar work you've done in the past? That's what matters more, IMHO (insert standard disclaimers here!)