Welcome zzmel,
In terms of full disclosure I do not consider myself Christian.
Personally I do not fear death no more than I fear going to sleep every night.
I am not looking forward to the act of dying ... but it is something I don't think I will be in a position to choose the how and the where.
I trust it will be swift.
Regarding the afterlife ... as a devout agnostic I pay lip service to not being sure, but as somebody with a scientific background it has to be a nonsense ... other than some Lion King Great Circle of Life ... that sort of makes sense to me. So my advice would be, we should make the most of our years whilst we are alive.
And finally to your question ... If you call yourself Christian then that is fine by me. You may not be Christian by some dogmatic definitions, but I suspect the few people that are here pay little heed to dogmatic definitions, it is your actions that count not your beliefs.