I have got this Landscape I am meant to draw but I don’t think I’m a very good artist. I will try all of your techniques and the best one will get ten points.

Take a photo and trace it, then even if you cant draw you can always fake it, and no one says that tracing is cheating, technically you are drawing, just miss out the small details.
If you want to do it properly, Id still take a photograph, its easier as you can see were boundaries are, like how high up a hill is, stuff like that, then it is easier to copy.
Another easy way to copy a photograph is to draw a grid on it and draw one on your paper, its easier if it is split up like that.
Any of those should get you a good picture.
Or you could just keep practising till you get better at drawing.