i shave in the shower, have a mirror in there for it. i use shick something for razors, or whatever looks close to those.. i usually go 2 weeks per razor, i shave 2 times a week on my face, once (sometimes twice) on the rest of my body.. yes, i shave my arms, chest, and legs too..
as long as you keep the skin wet/moist, shaving cream/gel on your skin, and the razor clean, it should help you out with getting it smooth, and not abusing your face eather.