FL-Panther - I love coffee, but seriously - you are drinking too much.
First but the Whole Beans, from a Fair Trade source. Make sure they are
100% Arabica, and try to get beans from Africa, or Brazil,or Columbia,
not South East Asia. Then get yourself a good Burr Grinder
(Burr is the type not brand ) Italian coffee is dark roast African coffee ground fine.
Use a French Press, or cone filter and pour boiling water slowly over the ground
beans. Drink it within 20 minutes. Coffee varieties should be chosen by your own
pallete and taste, medium roasts have more caffeine, dark roasts less.
Fine grinding and using an espresso machine for dense small cups or cappuccinos.
You can keep it simple with a French Press and a frother.
Id you really want to go all the way - get green beans and a roaster
and roast it yourself, they sell all this gear on Amazon.