What if you didn't choose a field that allowed you to save that 70k? What if you you were laid off multiple times during the crisis in a low end factory job, and don't have savings? How would you climb out of that hole?
Accept that you made a series of decisions previously that put you in that position and then determine what you are going to do moving forward to get you out of that position and then act on it. The acting part is where most people fail.
There is virtually NOTHING in your life that happens to you that REQUIRES you to have to make a decision where you have no options. People only act like it does.
Maybe you couldn't save 70K but maybe you could have saved 10K. But you chose to want to eat out, or stop and have coffee every morning, or spend money on things you didn't need, etc.
The bottom line is everything you keep saying is in line with someone who is unwilling to take responsibility for their own choices in their life that have led to them being in the position they are in. Until you are willing to change that nothing is going to change for you.
Choosing to be in the field you are in a decision that YOU made.
Staying in that field when you realized you weren't happy with the amount of money you were making is a decision that YOU made.
Not going to back to school to get a degree in something that would allow you to switch career fields is a decision that YOU made.
Choosing to spend money on things instead of saving more of it is a decision that YOU made.
All of these decisions added up over many years explains why you are where you are right now. Stop making excuses for them and start owning them.