no dip stick. Usually a little "container" located somewhere in the engine area near where the driver sits. Usually a fairly small plastic thing, that when clean and not covered with grime, is sort of see-through so you can see the fluid level without opening. Don't want to get any dirt in there so don't open if you don't have to.
Better to just go to a mechanic (garage) and have them fix it, since you do not seem to have a good idea about what is going on. Brakes are pretty important and not to be messed with unless you know what you are doing. Your life (and maybe someone else's too) is worth the money.