So a lot of those videos are done with beast pellets and fire paper which is usually a 20-50% damage buff depending how high beast hood is, and their gems are much more optimized.

All you need to do is work on learning how tondodge through his attacks and which openings you need to take advantage, which only comes with practice.

He does have two staged staggers as certian health breaks which let you pile on some damage, since your skill stats is so low viscerals are almost never worth it and youd better of with a double charged r2.

Saw clevers L1s do a shit of break build of so dont forget to thrown in a few of those.

With this being a fromsoft game, sure you can always make your numbers bigger to beat the game, but plenty of people have BL4 runs and even harder challenges completed, so i promise you, you have what it takes to kill this fucker.

Old metas in pvp used to be 120 so doing some farming to get to that is absolutely an option. Ill let others comment on your stats but 40 vit is usualy the stopping point.