First whenever I plan to go to Bandos I always get out a hammer first because if I don't I'll most likely forget it and have to kill imps for half a hour.
So then here's what your inventory should look like:
If you haven't completed the quest for Trollheim teleport then just walk from burthurope games room with the same inventory and don't forget climbing boots.
Here's my armor that I wear to Bandos:
DO NOT WEAR WEALTH RING! I RECOMMEND WEARING LIFE RING OR ANYTHING ELSE JUST NOT WEALTH! (wealth ring is known to make Bandos not drop anything)
So now teleport to Trollheim and drop 2 shark then teleport back to Castle Wars with your dueling ring and bank the dueling ring then withdraw the 3 spaces of shark or all shark until full inventory then teleport back to Trollheim and pick up the 2 shark and you should have a full inventory of shark like such:
Now make your way to godwars and when you get inside protect mage and wield your unholy symbol or book and your ancient mace.
Run a little north until you hit goblins (no not hob goblins just goblins) they're much faster and you never get hit.
Now after you get kill count just look for a team on forums or just go to world 9 or any other lootshare worlds until you get into one and your good to go
Here's what you get after staying at bandos for a while:
Hope this helped