Of the “three kinds of wickedness” or “types of evil”, which…

Of the “three kinds of wickedness” or “types of evil”, which did Augustine find the most “shackling” (i.e. which did he think he struggled with the most intensely)? [sin1] Of the kinds of wickedness, which did Augustine come to identify as the source/root of all the others (i.e. the worst kind of sin)? [sin2]