@IrisJoy It’s a difficult situation op. Shielding for over 4 months, then.....back to normal (well, I know, not quite normal).
My dh was shielding too, as he has had a heart transplant. Our son moved out, to stay with a friend (just came home 3 weeks ago, when shielding was paused), so that his dd and I could completely isolate.
The only ‘support’ my dh got from our gp surgery, was when one of the partners phoned to ask him to have a DNACPR put on his medical records and to say he shouldn’t expect to be ventilated if he did contract COVID!
Due to our isolation we have got through this safely, so far, though it has been a huge worry. Then, all of a sudden, shielding is paused and that’s it! I don’t know what we expected, but really difficult to think that on 31st July he is high risk, then the next day we can start getting back to normal! However, if he does catch COVID, surely he will still be at the same risk! Nothing we have heard has allayed our worry!
I am pretty sure, from your OP, that you have similar feelings. It is such a difficult time and, while I don’t see how the Government could have really dealt with the situation differently, it is a huge grey area! I really feel for you and while you may think you are letting the school down, your own health is the most important thing!
This is your life, COVID is still a huge risk if you were to contract it! You know what you have to do. You need to put yourself first and anyone who says, or thinks, otherwise is wrong! I also agree that Zoom tutoring may be a way forward, as, until there is a reliable vaccine you will remain at risk! Take care 💐