Welcome back Arch!
I am sorry to hear about your difficulties. As you know, I fully understand much of what you said. I am glad you are well though and my best wishes go out to you and your family.
Aye, getting back into something that you have put aside for a while can be a bit difficult. A lot of my own frustrations when i face this is "I remember doing this but how??" SO trying to get the brain to remember some of that older knowledge can be a bit daunting at first.
Feel free to ask any questions you have, i am sure the community will be more than happy to help out in any way we can. And remember, there is nothing you can "break" that cannot get fixed.
Sarrene'