We didn't set up the vaccine schedule to favour certain groups for holidays. But because of their risk factors.
One of my household will have had both jabs by then, but trust me I'd swop their CEV co-morbidity in a flash and wait as long as it takes to resume activities.
But thus isn't a British decision. And we cannot control the continuous that other countries lay down.
Do you really think that all relaxations/changes should wait until everyone can be included?
Do you fancy cancelling both the steps on March because shielding (new longer list, no age conditions and affecting millions of working age people) people can't join in before next review due 31 March?
Dividing people by health status has been gong on throughout thus, and some of us have had the shitty end of the stick for a long, long time. We get that it's a shock when you've previously been in a lucky, favoured group to realise that on one point you are not. But it's no more unfair than any of the many others, and it's for a much shorter time and for something non-essential. You'll be fine