Is teeth whitening the right course to fix this discolouration on my front two teeth? (photos)

In the photo we can't see what kind of stains you are referring to, but we can see translucency, which is a normal characteristic in the incisal third of the teeth. Also between the central incisors there is a small black triangle that is caused by tooth recession, which may be due to...

Ive seen this system in europe and inquired about it. You are still burning the tobacco and chemicals within those cigs do cause staining.

Fillings, unfortunately, can't be whitened with the whitening strips you are using. The hydrogen peroxide would be ineffective on them, same as if you had any crowns. Fillings can change color over time with darkened foods and beverages like coffee, tea, red wine, soy sauce, etc. If this is...