Faith is the substance of hope - of things hoped for and the evidence of things not seen. So if you can hope for it and imagine it and keep imagining and hoping and seeing yourself driving a new car or seeing yourself getting that job or seeing yourself excel seeing yourself help that person - that is faith.
I have this horrible sense of humor where I think discomfort is funny - partly because I experience discomfort a lot and it's a way of laughing at it and getting a release.