I'm sure it's awful for you, but sorry I rofl at pastry being "frightening beyond belief" - sorry
I actually don't agree with Kathy - jus-roll shortcrust readymade pastry is pretty tasty - and you can even get it ready-rolled. However here is my foolproof pastry method -
Half fat to flour (so 8oz flour needs 4 oz butter - or 4 oz of fat made up of a mixture of butter, margarine, shortening etc). Plain flour.
The butter needs to be cold and hard but don't worry about the rest.
Flour in a bowl.
Take block of pastry and coat in flour. With a sharp knife, slice the butter into thin slices into the flour. Coat all the slices in flour by swishing them around, then gather together again, so the block shape is recreated, but made up of slices interleaved with flour.
Now take knife and shave off slivers of this block at the corners, turning the block so you can keep shaving off tiny bits. The flour stops them sticking to the perfectly separated slivers all fall into the bowl.
Now stir with a normal butter knife - instant breadcrumbiness, no need for getting your hands in.
Add cold water (about an eggcupful for 80z flour, add a tiny bit more if necessary) and use knife to mix until it clumps together, then gather into a ball with your hands, using more flour to stop stickiness.
Wrap in clingfilm, into fridge for half an hour, then ready to roll.
For extra-luxurious pudding pastry (eg for mince pies), add a couple of tablespoons of brown sugar to the flour, and use a beaten eg instead of the water.
FWIW I was crap at pastry for a long time, until I developed this method and now it always works.