Hi Ben,
Hope you enjoy it here, welcome aboard. With circular breathing, try playing into your didgeridoo for as long as you can to sustain the drone, and when you've run out of air, keep your lips to the instrument and breathe through your nose, and then blow again. This gets you into the habit of what is required in circular breathing n will strengthen the musculature involved to properly circular breathe even if you can't get the flow going first time around. A common mistake is to break the seal between lips and mouthpiece and to breathe in through the mouth.
You may find that practising like this for a couple of days will give you the strength to get your first few seconds of circular breathing shortly after, and once you've got it, there's no looking back
Its then just a matter of learning vocal calls, different rhythms/techniques etc. This is the part that will take time to develop, don't expect to play well straight away but after a few weeks you should notice the beginnings of rhythm creation.
Good luck and enjoy and let us know how you go!
Guan
) but otherwise I seem to be ok with getting a decent drone out - even if it's only for a few seconds haha
