If the PPL training was good quality then the person should be able to fly the aircraft almost without thinking about it. I am incredibly grateful to the quality of my instructors, even though I had four within a year, they were all superb, and the standard ops inside the aircraft happen second nature allowing much more brain capacity to deal with unusual situations.
Is this the case OP? Do you fly regularly? Is it simply being rusty? Or have you always felt an extra pressure?
I've always been of the impression if I can do it then anyone can. There appears to be a mythical standard of excellence some people profess that pilots require. Unless you plan on dogfighting russian MIG's I suspect you can and will do it. Keep going, if it's what you want to do!