No.
No.
Not just believe in Jesus as many Churches teach as Scripture says even the demons believe. But disciples are to be 'imitators' of Jesus as our perfect model.
Not all of the disciples believed that Jesus was God during his time on Earth.
Jesus wasn't reincarnated He was resurrected and all disciples except Judas Iscariot saw Him. (Judas hanged himself after betraying Jesus).
The twelve disciples and all who believe their message. That means you and me if we believe in Jesus.
I think you are referring to John 14.1, where Jesus told his disciples not to be troubled. Why he told them this, i think is answered in the remainder of that verse, - "ye believe in God, believe also in me." When we truly believe in Jesus, why should be troubled at anything? Jesus loves us!
Jesus' disciples
They all faithly remained Jesus disciples after his death.
Christians do not believe in reincarnation. Christians believe in Heaven.
Yes, Rastafarians believe in Jesus as an important figure in their faith and spiritual beliefs. They view him as a prophet and sometimes as the reincarnation of God.
there is no recarnation of Jesus
Jesus' disciples were primarily Jewish.