Yehudah Tzvi ben Elisheva,
I wish you a complete refuas hanefesh and refuas haguf, b’karov. I can only echo the sentiments of am yisrael chai which he expressed better than I can.
Hashem knows your situation and He knows that you cannot prepare for the Yom Hadin as you otherwise would. He will not hold it against you that you can’t focus on teshuva and that you are unable to wear tefillin. Machshava K’maaseh – He knows you want to do it, and would do it if you were able to, so He will certainly count it on the Yom Hadin as if you had done it. And IY”H the terrible yissurim you are going thru will wipe your slate clean and you will have an incredible year ahead with good health, happiness and parnassa and whatever else He knows you need. Tichle shana v’kileloseha v’sochil shana u’birchoseha (The past year should depart with its tzaros and the new year should begin with bracha)
Do you live in a large frum area? If so I urge you to call a friend for even a 5 minute chat or to call the local Bikur Cholim (if there is one) and request visitors. Even if you are only up to it for a short time daily, I think it will do wonders for your spirits which in turn can make the healing process run faster. Do you have family with you or are you completely alone?
I wish you all the best and please keep us posted.