I have been using a Waterpik for about 2 weeks and am becoming frustrated. Every time I use it by the time I am done I feel like I have taken a shower. Everything I read says using Waterpik is better than flossing but my teeth do not feel that way. I am having a lot of issues with using the Waterpik on my teeth on the right side of my mouth on the rear side. I am right handed. Am I supposed to put the waterpik in my left hand when doing these teeth. I watched the instructional video on the Waterpik website and frankly it was not much help. Half the time they are fading out of the picture and then coming back a moment later. Love how the demonstrator is wearing a suit. I am setting the pressure to 7. Does anyone have any tips?