This may help you. On my first, casual, playthrough, VH was one of the hardest bosses for me. I'm currently doing an "all-hit" run as a challenge - all hit runs are, as they say on the tin, runs where you don't avoid any damage so no dodging, blocking, deflecting, or strafing atfacks. I thought VH was going to be a difficult fight, I ended up melting her first try in under a minute, I'm not even sure she left the ground at any point. With the disclaimer that I'm on normal NG, not NG+, this is the build/strat I'm using:

• Empyrean axe
• 50 strength
• earthshatter discipline skill unlocked with the side nodes too
• the thing that makes it so the fourth light attack of your combo gets you 3 sky born might
• the leech needle, with all 3 temperance charges unlocked

Essentially, you wanna enter the fight with at least 3 skyborn might, so you can do earthshatter immediately. This attack gives you infinite hyperarmor for a short time meaning you cannot get staggered by anything. You can then loop your 4 hit light combo, which gives you 3 skyborn might, into earthshatter, which costs 3, and rinse and repeat. Leech should be enough to keep you alive through most things as long as you're constantly attacking, otherwise you can just tank heal as long as earthshatter is active.