Hi, you will no doubt get many answers to your questions, and most will offer similar advice I imagine.

1 a good way to start is find a comfortable to reach part of the face and just shave that until you are comfortable and confident in using the blade, the side burn is usually a good area for this ( use you normal methods of shaving for rest of face) once you grow in confidence progress to the rest of the face.

2. Short stokes are best

3. As per answer 1, get confident before taking it. When you do keep your strokes straight, bad cuts only really happen if you making a slicing motion

4 not sure sorry.

5 I just wipe on a towel

If you have not already done so check out the beginners guides on here and watch vids on YouTube to learn techniques. Good luck!