Erm........... we also shan't be having it. OH had a horrible reaction (yellow-carded) and I had the worst head-pain ever. I also know 2 people who had mini-strokes after it (and they weren't obvious stroke candidates). We keep saying 'No', but they keep asking.
A friend currently has Covid - she is not a well woman anyway (allergies etc) and is fairly poorly, but will survive.
To answer your question - you wait until contacted by your GP surgery.
Shingles is an individual decision and you need to wait until you are 70, unless your surgery says otherwise (I strongly advise you to have the Shingles vaccination).
'Flu is a yearly jab and I always have it - have done since I was 40 because, as a teacher with a bad chest infection record, I was allowed it earlier.