Hi All,
JCA is correct: Q2 must be connected correctly so that it can turn ON!
Also, it would be better to interchange the values of R6 & R7. Now,
look at the gate of Q1: R5 & R9 form a voltage divider so the gate
rests at 6V while U2:A is off. The Vgs(on) will keep the super cap
from taking a full charge. (How can messed-up schematics like
this be published?)
Herb