I am deeply concerned about losing my job because I cannot conform to speed/time regulations of a USPS PTF position. This has caused much anxiety for me over the last 11 months. I have tried everything within my power and feel as though my supervisor has made a fair share of attempts as well. I feel as though I can't possibly be the only person in USPS history that has struggled with this issue. I often feel as though I am being pulled in too many different directions at once. I was a highly functional PSE for two years plus. What on earth am I doing wrong and what can I do to improve?