So hi all.

Today I had a day off at work but last week Friday.
I installed on our shared PC a prank tool.

My colleagues found out and we had a good laugh about it. .
But when my Boss found out he was not amused.
And so I lied that it was not me. Then he later asked again that if it was not me but I lied again. He then showed me the logs from the said PC where it could be traced back to me.

So in the end I admitted that it was me.

He told that he is disappointed in me and he will need to reconsider our cooperation for the future.

I am now having hard anxiety as I really love and need this job. As my mother is sick and the only de facto "bread bringer" (English not my first language).

I am really anxious as except my job and coworkers I do not have anything else and it helps me to focus on something else. Other than the pressure as I have to take care of my mentally ill mother and it's starting to get to me as well.

Help.