So I Just First Tried Gwyn.. In 47s... As A New Player To Dark Souls: Remastered

bought this game like a week ago, idk if i did a glitch or exploit or wtv but he was really easy all i did was stand still wait for him to attack, parry his attack, visceral, repeat, i've seen some of my friends who complained he was hard even after a few hundred hours into the game and i've seen youtubers also struggle w/ him, not sure if i was over-leveled (level 77) and kinda left disappointed. I wish I could show yall the video and a ss on how many attempts it took to beat each boss but for sum reason i cant upload it??? i'll try to have it fixed, anyways long story short, new player kills last boss easily by parrying in 47s and wonders if i did sum wrong.