Hi D.! I feel your pain. I have a scripture verse to share with you, one that sustained me during my husband's recovery from a near fatal accident--I Peter 5:7< Cast all of your cares, worries, & anxieties upon the Lord for He cares for and about you. (this is taken from the amplified Bible). It's okay to be scared, it's okay to be mad, it's okay to be anxious, it's okay to cry. However you're feeling, you can know and trust that you can pour out your heart to our Father in heaven and trust that He will take you into his arms and give you the "peace that passes all understanding". He will sustain you as you are strong for your husband, yourself, and everyone else. I encourage you to keep a journal, if you don't already. Also, (this is gonna sound selfish-but it's not) make/take time for yourself to have time to reflect & write, to take a bubble bath, to meet a friend for coffee, etc... I know that God will give you the strength, and everything else you need to "be strong". By you asking for help shows much strength in its self. I'm praying for you, and know that you're gonna make it through this. I'm just crazy enough to believe your husband will too.
Also, the medical field has changed a lot in 25 years. You will have to be your husband's advocate. Closely monitor what the nurses & doctor's are doing. Research every med they prescribe for him, every procedure, don't take them at their word every time. I know, this may sound conspiratorial(?), but on more than one occasion, hospital staff, & physician's have almost killed my husband through meds. Because,there is a cap on lawsuits in this state(not that I'm a big proponent of such things) they know they have patients and their families over a barrel. Don't take anything for granted. They will get mad at you questioning them, but your husband's life may be at stake.
Praying for you & yours, R.