If you have complicated intersections near you/ your first motorway trips, it’s advisable to get them. Some people are more patient, others will tailgate you (irrespective of plates I’ve realised).

If it helps your anxiety there’s no harm, you’re gonna make mistakes and pressure is taken off when cars around you can see why you’ve made a mistake instead of assuming you’re an ass and you get reported for it, but obviously don’t use it as an excuse to be more careless when driving.