Hi, is there anything specific you would like to find out more about? Is it perhaps some sculpting basics?
In that case, there are a few things that are good to know: Knead the green stuff (or whatever two-component sculpting putty you use) for as long as it take to have it become an even mass without lumps or strings of one component. Rolling it out into a thin string and then whirling it into a spiral around itself and then kneading again often helps.
Then, water is essential. Green stuff does not fasten on water, meaning a surface you apply it to must be dry, and the green stuff should be thoroughly pressed down onto said surface without crags at its base letting water in. Dip your sculpting tool in water frequently to stop the sticky putty sticking to the tool.
Green stuff is great in that you can always regret and go back one or more steps to start over on the sculpting, as long as it hasn't dried too much.
Cold makes green stuff dry slower. If you need to take a break from sculpting, but isn't finished yet, then put the miniature in the fridge and return to it later in the day. If you need it to dry quickly, then put it under a strong lamp and perhaps make a little "oven" out of aluminium foil.
Oh, and always attach the green stuff directly to where it should be. It's usually easier than sculpting on another surface and then remove it when dry (although that, too, can work).
And remember that everyone is a clumsy amateur in the beginning, but by using small step-by-step tricks like those described in tutorials, it is possible to speed up the learning curve and get better quicker by not having to figure out every technique for oneself.