Is a BFA in Musical theatre actually gonna help me land jobs? Or is it just useful for the taining?

A College education ( and a College Degree) is imperative to life and your future in the changing evolving marketplace. A BA is great, a Masters even better, a Doctorate still the best option, if you can. Now to further answer your question... "get your BA in musical theater." A BA in musical theater these days is very limited. Also... you did not go into detail in your question. Get a BA from what institution? Yale, Harvard, Carnegie Mellon, NYU, Julliard, Northwestern, UCLA, UCSan Diego, University of Chicago, Columbia (Chicago) ... yes that will help you, because the Network you build now, will serve you down the line. That is good for your training, as well as smart business. The higher rated that institution is, the better. Aim high. Is this a guarantee for work? Well, it increases your odds, but there is no guarantee. But a degree from those institutions of higher learning will help. The training at all of those schools is thorough. But it would serve you better to have a 'broad based education' to achieve opportunities. So study of an instrument, of voice, of languages, of literature, of film, of acting (for stage, for film for television- all different skills), of comedy and Improv, of 'accents', of business, marketing, accounting and computers (because you will need all of those in your back pocket) -- to build your websites, promote yourself, protect yourself, look over your contracts, balance your budget to survive, etc. Broad based... as I stated. Begin to research where you want to go to university first. Begin there. Apply there. Just musical theater? What about the rest of your stage skills? There are a limited number of musicals each year. What about Shakespeare (ps; A musical called 'Something Rotten' currently on Broadway- utilizes Shakespeare and comedy. You need all those skills.) You must think with wider vision, or your potential and career will be limited. Again... Aim High. All the best.