Many of the names and places will be familiar to those who watch The History Channel series Vikings. BBC's adaptation of Bernard Cornwell's Saxon Stories chronicling the life of Uhtred of Bebbanburg (based largely on Uhtred the Bold of Northumbria, d. 1016).
To score an A* grade for A level Psychology (AQA A) you must score at least 320 UMS out of 400 with an average of 90% at A2. So in basic terms you need to score 90% over Psya3 and Psya4. You can score 85 UMS for Psya3 but then score 95 UMS in Psya4 as that would average out at 90% over the A2 units.
The average minimum GPA that most programs look for is 3.2. However, the way in which GPAs are rated varies from program to program. Some will have lower or higher required GPAs, others will look more closely at the last two years' GPA, and still others will also look at the GPA you received in psychology courses.