I can only generalize. Wired and anxious sounds like adrenal issues. Thyroid and adrenals work hand in glove, and when one is off, the other struggles. You've been functionally hypothyroid for awhile, based on your TSH results. This puts a strain on your adrenals. Then when you add back the Iodine and co-supplements, thyroid wants to respond, but adrenals struggle to do their part. It can be hard to sort through what's happening.
I encourage you to speak with an adrenals forum. They should combine adrenals with thyroid help. I have a recommendation, but you may know of another.
Given your mother's heart failure -- which can be made worse by low thyroid and low CoQ10 -- I think it's prudent for you to push past your current state and get your symptoms sorted out. Iodine can help both adrenals and thyroid, but I'm afraid you'll stay stuck if you don't learn what else is affecting you and what to do about it.