Hello I am also a beginner, I used the GoPro for the first time in the Philippines, advice that I can give you and try and try again to find the right position to allow the mini Macromate to focus, at least a torch for the macro is essential, use a bracket banding on which to place the gopro and the torch, the video is plus stabilized,for the setup of Gopro I have been inspired by the articles of "Underwater photography guide" site ,above all, try and try again you can only get better,if you need more I am available thanks for the your interessing and i am sorry for my english not good