"Am I still a Catholic?"

I hate getting into these kinds of things. The easy answer is -- Yes, you are still a Catholic until you formally join some other church. One could also say that the "reward" of a good Catholic Christian is not to be closer to the pope, but sanctity, to be closer to Christ. (One can be both, too. They are not mutually exclusive.) However, for a cradle Catholic (like me) in communion with the pope, as it were, the Petrine Office is far more favorable to the unity of the internal and spiritual resources of the 24 different Catholic Churches (Eastern and Western) than no office at all, no convergence, no focal point of unity. If one prays as I do that "all may be one," a believer would want this -- 24 Catholic different Catholic Churches attempting to live as one in Christ, sacramentally and organically. With that said, I do think you are still a Catholic, following your conscience, more to be understood and appreciated than to be followed by someone like me.