New Month and New Resolve

Well November is here.  With each new month is another opportunity for me to get my finances back on track.  I've done the research and put the time into it and have already formulated a budget for my finances that'll result in me being able to accumulate money back into my savings account each month, IF I stick to the budget.  But being the impulsive person I am and the way I get what my mom calls "shiny thing syndrome" whenever I'm at a store, I haven't followed the laid out budget at all for the past few months, and I'm constantly in the negative each month as I'm, as Suze Orman would put it, "living beyond my means."  The thought of being a broke hobo with no money and no home and not enough resources scares the shit out of me because I've already been there, done that (back in 2013) and let me tell you:  I will NEVER be in that type of situation again.  It is one of my biggest fears and biggest motivating factors in wanting to get back on track financially so that I'm saving money each month, not blowing through it just because I see something in Walmart, Target, or Walgreen's that I think I absolutely "need."
In other news, Palm Springs guy and I finally made contact with each other, and he's in very bad shape and is pretty much in a corner with his back against a wall and no options...and he's asked me for help.  I'm torn and don't know what to do.  On the one hand, I want to stick to my boundaries and I keep replaying our big fight in my mind back in Palm Springs when I finally got out of the car and basically told him to go fuck himself and walked away and then had to spend $200 of my savings account money to get myself back to Las Vegas.  On the other, I hear the pain and fear and desperation in his voice and know that there's pretty much nobody left that'll help him and I know what it's like to be in that kind of situation so that stirs up feelings of empathy and compassion in me and makes me want to help.  So I'm conflicted between sticking firm to my boundary of tough love and detaching with love and letting him figure it out for himself as these are the consequences of his actions and behaviors and choices OR spending more of my time and energy and efforts to help save him from even more catastrophe.  Not sure what to do.  How much is too much and when do you let go and let them figure it out for themselves?