Get well soon Phaelax!
Reminds me when having worked in some takeaways, the shear heat we have to deal with, surprised our skin does not just turn to stone sometimes... like when baking we stick our arms into a hot stone oven just to bake some bread...
Never use fluids on BBQ's, and if you do, always use something extended like a rolled up newspaper or put the newspaper on the end of a stick... and always bend down below the fire as if there is any wind or a freak gust of wind in your directions, you can say good bye to your eye brows
[video] LF can make your food greasy?
Also try some aloe vera cream once the worst of the burns have passed...
Just watched the rest of that video and can honestly say... he needs a Better BBQ stand

, also a good idea instead of using twigs and even paper...
Use a blow torch to get one stone going and as he did pile them on, get the stone burning outside the BBQ pot, if you have that type and stoke it like mad, get some rapid air going past it to ignite its internal fuel capacity, use metal tongs to move it to your BBQ stand and place flaming into the middle and pile on top the rest of the stones, then stoke it some more but on a lesser strength...
When I worked in some kitchens, we used a mix of methods [I have worked in a lot of kitchens through the years helping friends get their businesses going]...
I miss the old days
Never had a burn yet...
So I can guess you will not be put off doing a BBQ in future, just learn from this one time and push on
Good Luck with the academy! just push on if you have to be there on Friday!