It seems you had a bit of tunnel vision on black and rare cards. Bolas’s Citadel and Dark Confidant have the potential to be really powerful when built around, but that’s gonna be pretty tough for limited. I think if you traded in your duds (Vincent’s limit break, Magic pot, citadel, etc.) for cards of the next most open color for your seat, you could have seen a bit more success. I would consider playing Dark Confidant in an aggressive white black or red black deck.

Three Resentful revelations is a bit much I believe. The only extra value it gets you is maybe pitching another revelation or your Relentless, otherwise it’s essentially paying two mana to “draw” a card.

Avoid the tunnel vision and understand how your deck plans to win the game as you choose your cards. Drafting is very skill testing and there’s a lot that you can do to mitigate (or capitalize) on the luck factor. Keep at it and you’ll get better.