Your problem is in understanding the Holy Trinity. The trinity is a fundamental concept of Christian thought and your lack of grasp is indicative of the ignorance in which you started the thread. The questions you are bringing up were grappled with by the Church in great depth during the first couple centuries after Christ.
To Christians there is one God and only one God. The Father is God, the Son is God and the Holy Spirit is God, all the same being. The differentiation happens in the concept of personhood- a person is defined by relationships with other persons. The Father and Son are a relationship but in God found in the same being. It is a revealed truth that there are three persons in the being of God, and they are not three Gods as difficult as that may be to grasp.
Christ told us that He is the Way, the Truth and the Light and that no one comes to God except through him. He taught that there is a single, narrow path to God and that we get one shot at choosing that path, or will be condemned forever to painful separation from God. He taught the opposite of karmic cycles, that we are valuable to God and possessed of the immortal breath of God, not simply an accumulation of parts that spread out as easily as they came together.
Well, everybody has his own interpretation of Christ’s teachings.
But, do you really love Jesus? If you say yes, do you obey His commandment “Love one another.” If you don’t obey it, there is no difference between you and the non Christians.
Blessings,
DS