Save your 401 plan after losing your job and getting divorced

Five weeks ago filed their own divorce forms taken from here https://onlinedivorcer.co.uk/. Two weeks later I was fired because my psychological state was very bad. I know that it is my own fault and I had to keep myself in hand, but it’s too late to discuss it. Now I thought about my savings. I can lose a part during a divorce, right? How can you avoid this? We didn't hire a lawyer, we tried to save money. Therefore, I am looking for help on the forums.

Talk to a divorce lawyer.  Soon!

If you are in the UK, I doubt anyone can help you on these boards.  We are US-based.