Everyone who has ever adopted Buddhism has been where you are at.
Don't worry. What you are discovering is that you cannot change the nature of the mind just be reading books alone.
You need to engage with the practice which includes sila
(morality/five precepts), samadhi
(concentration/calm), and panna
(insight/wisdom). At this point in time you may wish to investigate the many schools within Theravada and find one that is to your liking/sensibilities, then find out whether that particular tradition offers residential meditation retreats in your area. A residential retreat will give you a strong foundation from which to develop a practice in daily life.http://www.Buddhanet.net
has an international directory of meditation centres, monasteries and temples. its not exhaustive and it may not be up to date but it will give you a starting point.