I practice and teach survival skills such that I might survive in a sticky situation. These are things like wild water treatment, fire lighting, etc.
A survivalist is one who makes preparation to survive disaster by storing food, etc. It's largely used in the US to mean prepper.
A bushcrafter is one who practices bushcraft.
Since survivor is reserved for those who have survived, what do we, the ones who practice survival skills so that will survive, call ourselves?
This is for the UK where survivalist means prepper