Your problems are classic Post Concussion Syndrome. Nothing sounds like ADD.

At work you have the alarms to keep you on task. The over-stimulation leaves you more symptomatic at home where you do not have the alarms and other system.

There are two PCS symptoms that are difficult to live with. The poor memory makes it difficult to use memory only to remember to complete tasks. The easy distractability just makes it worse. You can start to do a task but see something that distracts or redirects your attention.

So, if you can set up systems at home that make it so you do not need to use cognitive thought or memory to get bills paid, you will do much better. You are focusing on the symptoms not the causes.

Accepting the causes as who you are for the time being and developing the work-arounds will give you skills that will serve you well for life.

Hope you understand this.

My best to you.