<human>: Can you provide a brief rundown of the text in within 3 sentences?

First off, to clarify, my step mom is my mom's wife. I knew something was wrong. My mom needed to borrow money to cover a bill. She was really off when asking for it. I finally finagled it out of her. She had just found out the my step mom is addicted to online gaming (not gambling) and has spent over 8k in the last year on games, half of that in the last three months. They are already non financially stable. They don't have some large savings somewhere where this is only 10% of their money. They live paycheck to paycheck. It had gotten to the point where my step mom was taking money from their account little by little and putting it into a secret account to spend from. My mom couldn't figure out why they were so broke (they both work insanely hard) so she started going through their bank account one line at a time. 

I am feeling so many emotions right now. Anger definitely, then also fear and heartbreak and distrust. My step-mom apparently didn't realize how much she spent. Life any addict she just pushed it to the back of her mind. To be fair to her, she feels terrible. She is taking full responsibility and is so depressed about hurting my mom and hurting the family that I'm now worried about her safety to. I already talked to her last night and as much as I wanted to scream and swear, I just couldn't so now there's a lot of pent up rage in me too.

Here is where I need help:

1. For my own sanity I need some "how" and "why". How does this happen? How can can someone spend so much on video and mobile games? Is this something that other people have gone through. Just tell me I'm not alone basically.

2. How can I best support my mom without going broke myself?

3. How can I best support my step mom without betraying my own pain?

4. What support groups are out there and active?
<bot>: My step mom had a secret addiction to gaming, spent all of my parents' money, I am feeling the all sads