I see that you also have another question pending... this is not a scam... I am not sure what was sent to you, but I do know that most Experts live in the US, and it's only now 5 pm, and many of our experts come on after work.
But I am here to help you now... my name is XXXXX XXXXX I am a therapist, and have been for over 20 years. The answer to your question is an easy one -- but it will take some effort on your part to follow through. First of all, you are not nearly the first Mom to continually bail out their child... and do it because of a mixture of both guilt and love. Secondly: and this is really important: STOP blaming yourself. Tons of kids grow up with rotten role models and turn out jus fine -- your son has some responsibility too, here -- but continuing to bail him out just allows him to not take that responsibility.
Does that make sense?
Everytime you bail him out it saves him from the natural consequences. When we, as humans, don't get to experience negative consequences, we think it's okay to keep doing what we are doing, even if we know better intellectually.
We rationalize and justify our bad behavior more and more -- and the consquences get worse and worse.
So now comes the hard part: you have to let him suffer with whatever cconsequences that come his way. I know that is HARD, but the longer you save him, the worse it will be for HIM.
Be there for him, emotionally, talk to him about how he must now behave (get a job; keep it, be responsible, etc...), help him to do better, but DO NOT SAVE HIM.
Make a pact with yourself right now-- that you will not rescue, save or otherwise intervene with consequences of his behavior. It's the only way he can learn.