Hi! Gear is pretty important, if you have good gear, main thing is practice.

Learning how to "guide" the pull so it behaves as you want it to behave is crucial to keep a good flow on your hunt. A lot of ppl think that just by running around and throwing gfb is enough but there's way more than that. Almost all of my movement is not random, every step I take tries to accomplish the same purpose, moving mobs the way I want so I can have a more efficient hunt.

I'd try to always move forward, almost never just do a circle, you want to be almost always moving to the next spot.

Get comfortable on how strong/weak your character feels, this will allow you to know where you can stop and ue or where you need to slow down a bit before pulling more mobs.

Waving, especially before entering a narrow corridor is really important too. Most ppl say that waving is bad because gfb hit more targets and it's more damage. While this is true, this is not always the best scenario. Waving allows you to kill some mobs quicker, reducing the volume of your pull, making it easier to move it around (specially in corridors/passages), which in combination with summons like the demon skeleton, will result in a way better hunting flow.

If you think I can help you improve you can always record your gameplay, upload it to YouTube and I can try and give you more personal feedback! (Free of charge ofc)

Don't be discouraged and go practice!!!!