Hi @Bigal1977 welcome to the forum 
I have no advice on the benefits front as I too am retired. But there are others here who may help you with that.
And only time can sort your sleep out as you recover. The first 6 months see the most recovery as your brain heals, repairs and mops up the damage done. Hence a lot of the fatigue you may (or may not) have noticed. I can relate to your sleeping pattern, or lack of sleep at all. But it is important to at least go through the motions of your bedtime routine, and lay there with your eyes closed (just shut out visual stimulation) for an hour at least. Get up for an hour or two then try again.
It will come back but it may take a month or a year, there’s no way to measure as we are all different and recover at different rates. This is a marathon, not a race and you’ll hear that term used a lot on here. This is indeed ‘slow and steady wins the race’ I’m afraid. So you need to learn to relax, a feat in itself in early post stroke, but it will come in time as you learn to relax and accept your stroke and to manage your fatigue.
Your in a bit shock at the moment and I’m sure the Christmas break hasn’t helped with holding things up. You probably won’t get your licence back until the DVLA has been in contact with your GP and stroke consultant and that will take some time. I got mine back a year after my stroke but I still wasn’t ready to back to get back behind the wheel; that was about another 6mths.