My courses look at the "why" of painting . Why am I drawn to that old tree rather than the big house I am supposed to want to paint? Many of us have asked similar questions of ourselves. These courses dwell on the why and explore personal inspirations. Regarding the how? you will add new skills to your toolbox and perhaps be aware that some tools you have are not really for you anymore.
You can work in any medium but generally oils are not too welcome with some students because of the fumes. Watercolour has its own challenge for many, it did for me, and I encourage students to use it positively and directly. Most love it but if you want to stay with the traditional way of applying watercolour then my courses may not be for you.
Bring an open mind, an open heart and be prepared to learn and have fun 🙂