DARK SOULS 3 enemies are more difficult than the actual BOSSES (part 6 playthrough)

Things you missed: 2 Npcs in the cathedral ,before the boss there is a lift just after the greatsword knight, and a covenant leader boc, albeit joinig it will stop sirris [the lady dressed in white, sitting on the stairs in firelink, spawns around the time you reach irrithil] questline, and it is advised to do it, it is the least cryptic one, If you talked to her, and killed the bridge beast, the a special summon sign will be on bridge. Also, talk to the sad guy, in firelink, he'll give you a ring for killing the watchers. The destroyed bridge in the catacumbs can be used as a ladder and if you kill the funny hat skeleton by the first BIG SKELLY BALL, the ball will shatter and leave the upgrade for the estus flask. Also, the turtle guy gives free levels, hes in firelink.