'If Jesus never called himself God, how did he become one?' asks Dr. Bart Ehrman.
If you have difficulty answering an objection like this, or similar ones, about Christianity, you can find many resources on the Alpha and Omega ministries webpage that can help you. You can also click here and here to listen to a debate and commentary about similar topics with Dr. Ehrman and Dr. James White. Also, do not forget to ask your elders. They can help you significantly in this area (i.e., apologetics) if you are struggling.