I am color blind. Depending on where you are in the world, there should be a club or school that offers training. All training establishments in a country assist you in achieving the qualifications to fly as a qualified private pilot. Training aircraft are intended for student pilots to learn on, and have docile handling characteristics, are forgiving if you make an error, and give good warning of conditions such as approaching stall conditions.
Clubs offer training facilities along with the ability to later hire aircraft from the club fleet.
Commercial training companies also hire out their aircraft but at commercial rates, and you might have to fit in hiring requests with their training schedules. You should ask at a flying school as to what they are. Medicals test you for physical conditions, heart function, lung condition, EEG function, hearing, and vision. In addition to qualifying, you should become familiar with the renewal periods for your medical certificate. This depends on your age and type of licence held e.g. A Commercial pilot of age 42 needs to renew his medical certificate every 6 months in certain countries, at age 54 it needs to be renewed every 3 months.