Treat the virus with respect, follow the same guidelines as given out to the general public, If you are an insulin user, make sure you can get supplies if in lockdown (I assume you have already got that sorted). If using diet to control, then consider that as well. I have other co-morbidities, so I have been shielded since March, but that is my way of dealing with it, So, Mask up, stock up, follow good hygiene, etc. Make sure you have cold/flu remedies to hand and discuss isolation issues if you co-habit with anyone else.
You do not declare what country you are in so this may not be relevant to your situation. As of this morning, the UK has a vaccine available for the elderly, and it will move down the age decades in time, We all have to wait a bit longer, but the cavalry is at the top of the hill!