You have two VERY big things in your favor...you're young and you have a college degree in something other than aviation that you can fall back on as a backup career.  If you're intensely passionate about flying for a livin' than it really doesn't matter what others say or think....cause you're gonna do it anyway.  That's good cause your going to need that passion and drive to sustain you through the lean times.  And there will be lean times.  It won't be all unicorns and rainbows.
You'll do stupid things along the way that will scare you and enlighten you, while at the same time giving your mother grey hair.  You'll learn what to do and what not to do during your aviation adventures and that's called "experience and judgment".  You'll need a lot of that as you progress in your career and you really won't get that from reading a book, only from hours spent in the air.  I say that because these "fast track" flight training centers don't really produce instant airline pilots.  They simply provide a piece of paper (ratings) and basic knowledge and understanding from which to build on while moving up the ladder.  Your job will be to work on becoming an "aviator" and not just an airplane driver.  That's knowing what the stick and rudder are for and not just how to push LNAV/VNAV and autopilot "Center CMD".
There will be times where you will wonder what the heck you were thinking of and why you wanted to get into aviation in the first place.  You'll worry and wonder when or if you'll get your big break.  It may come sooner than expected or it may never happen regardless of money spent or preparedness on your part.  Sometimes things just happen for no apparent reason.  Be flexible and work on a plan B or C. 
I've looked back on my career (now 30+ yrs of airline flying) and come to realize that most of my success was due to just plain old good fortune, luck and timing in the industry. Sure, I've worked hard and always tried to do the best and be the best at what I do, but so have many others that came up short in their career pursues along the way.  What's the difference between me and them......IDK, good fortune, luck and timing is all I can offer.
I don't know what your college debt is currently like but you and/or your parents are about to incur a lot more of that with flight training. The thing you have to remember is that there are zero guarantees in aviation regardless of the money spent or effort given.  That's the part that really sucks!  Some guys never make it to the majors.  Some decide to stay at a regional carrier or go corporate or bush flying or whatever.  There is absolutely nothing wrong with that and it's whatever makes you happy and content.  Your views on that will change over time so making hard core plans at age 23 may be an exercise in futility.
Now that I've got the Debby Downer part out of the way...
I congratulate you on being goal oriented and self driven.  I see so many young folks nowadays that don't have that and they just seem to be floundering and wandering through life without direction, passion or goals.
Doug has a great website here with a lot of folks at different levels and fields in aviation willing and able to give advice.  Continue to ask questions and listen to the answers....even if it's not what you wanted to hear.
Remember, you are still very young with a college degree and coming into aviation at a very good time when airlines will desperately need pilots.  There will be opportunities both here in the US and abroad.  If you work hard, keep your nose clean and keep the passion for what you're doing, I think your future looks very bright.  Also, try to remember that this career is a marathon, not a sprint.  Try to enjoy the ride and scenery along the way.  One of my biggest regrets, now that I'm coming to the end of the road you're just beginning, is that I was so focused on moving forward in my career that  I never really spent a lot of time enjoying the adventure....  
Good luck and tailwinds!