My wp expired at the same time II left my job, the employer thought there would be no issue and did not bother to cancel it and told me that
I went to immigration to check and was told that I had to leave immediately, I contacted a visa company who helped me sort the mess out, the mess being the non cancellation of the wp. Apparently the company can be fined for not doing this
It’s only a form to be filled in by them and registered
See this as a temporary difficulty and nothing to be embarrassed about, my brother had a double hip replacement and now he is pretty mobile, focus on how great you will be post op