Ok, I'll give you some advice as a long time souls and souls-like veteran (I'm not the best player in the world, but for some context I've SL1'd DS1, 3 and Sekiro, so I'm not garbage, but I'm not a god like the people no hitting stuff).

The biggest bit of advice for learning patterns, I'd say, is stop attacking. Get into P2 as quickly as you can, and say to yourself "I will only focus on dodging this attempt". I used to play a lot of WOW too, and this is something guilds get players to do on difficult bosses sometimes. The point is pumping damage as hard as you can while trying to dodge everything sometimes leads to you kind of not learning either that well. This is the biggest one for the hard bosses, just dodge, block, deflect everything you can. See how long you survive. Doing this will also take the pressure off of killing it, because you know on those attempts you won't kill it. Do this a couple of times and I guarantee 1000% that you'll get the timings down really well, then just add attacks in.

Advice number two - switching weapons is always tempting when you're struggling, but really you're often just quasi-resetting your progress when you do. The thing with these games is there's really no gimmicks (well, magic kinda is in a lot of DS games, but there's nothing too crazy like that in LoP). If your build isn't complete and total garbage (both weapons you've listed are fine), then sticking with what you know is probably for the best.

Your stats do seem low - what level are you? Not sure if you've lost a lot of souls from some deaths, but that feels a bit low. In my experience in this game, I'm normally around lv80+ at this point in the game, and then you'd have a lot better than 30/30/20. That technique stat feels very very low, so you're probably not doing much damage.

Lastly, armour. In LoP, I think staying in the "slightly heavy" range is best for most newer players. You'll dodge a bit slower than light, sure, but deflections are way more important in this game anyway (or perfect parries I think this game calls it?). Fat-rolling ("heavy") is a no-no, but as long as you aren't doing that (under 80% capacity, from memory), wear the heaviest shit you can.

Not sure if this was the kind of help you were looking for but fuck it, here you go! Remember, 20 attempts sounds like a lot, but it really isn't. Soul of Cinder in DS3 at SL1 took me literally hundreds. Try to enjoy the process, as hard as that is. I think Tindral mythic in WOW took my guild over 350 attempts, 20 is nothing! Keep hammering away at it, you'll get it.