And of course there is the Poser Morp Brush. if you have a Wacom Intuos that surely is an option. The pen reacts sensitive to pressure and that is a world of difference with the on-off behaviour you get with  a mouse. I did try to cheapskate with a Bamboo but no avail.

Go gently, have patience. Use cumulative strokes and low magnitude. This will bring you will a long way. Think of how long it would take to sculpt the face real-life in clay or wax. There is no reason to expect it will be any more quick in 3D. Relative to real life sculpting you have 'healing' (undo) and symmetry but no sensitory feedback from your hands and you see the result with only one eye. You therefore have to change views often to look at your model from different sides.

There is no 'make beautiful face' button. No matter which tool you use the result will depend on your artistic skills.