I would suggest considering to tell the boss, that you would like to get more involved in other facets of the company, to learn more of the business. You can look around and see which group is hardest working and ask if they need some help there but be specific, e.g to enter orders for this division etc.
I am familiar with your situation and it very very nasty thing to go through. Often the boss hates you, and so until he/she can fire you, they try to forget you exists, that you are a person with talent.
Speaking up as I suggest tho you run a risk of getting canned.
You have to decide if that would be ok or not, depending on your family situation, I wouldn’t wish to drive you to asking for Tzedaka on the street or so.