Flavoured coffees smell amazing but I find them nearly undrinkable.
The flavouring completely overwhelms any of the natural notes you get from the beans with the only thing making it through is the bitterness.
I dunno, maybe I just haven't tried the right brand or roast but every time I do I end up regretting it. It has to be cut with cream.
Unless you're made of solid muscle, you may want to do some self reflection because 120kg at 190cm is pretty well into the range of clinical obesity.