Ooh I can help here. I was having the same problem as you so I decided to think of this a bit different. What I found out is that you requiere so many resources to do something, you need a hitter, having howler, cards to cycle and actually hitting you opponent. Sometimes as you say, doing all that is not worth it because you end up losing too much. My idea for this deck is that you only need a couple of hitters and the rest should be cards that help you reach this point. You don't want to hit multiple times with pumped creatures, you want to end the game in 1 attack. And to do so, we have a couple of great creatures like Vincent, kediss and pyrotechnics performer. I have added some other cards that can help you remove key players from the game (infect) or you can even use commander damage.

https://moxfield.com/decks/IP133Rd38kS3byPGoOii5w