I would like to strip some insulation from a wire (like shown in the image below, the green area should be only the metal inside, no insulation). I was wondering how I could possibly do this. Cutting at both edges (of the green highlighted part) is no problem, however, how do I remove a the insulation that is now stuck in between the insulation. I was thinking about burning at the green highlighted parts, but would that be hurting my health if it heats up later on when the wire is being used?

I could not find anything on the internet (some people mentioning "multicore", but that leads me to other results), nor anything on this forum. I do not have extensive knowledge, I just do this as a hobby so please go easy.

I would like to connect some items in serie, so I therefore thought: Why not cut in between the wire and solder those to the pins. If this is wrong, please tell me.

I would like to strip some insulation from a wire (like shown in the image below, the green area should be only the metal inside, no insulation). I was wondering how I could possibly do this. Cutting at both edges (of the green highlighted part) is no problem, however, how do I remove a the insulation that is now stuck in between the insulation. I was thinking about burning at the green highlighted parts, but would that be hurting my health if it heats up later on when the wire is being used?

I could not find anything on the internet (some people mentioning "multicore", but that leads me to other results), nor anything on this forum. I do not have extensive knowledge, I just do this as a hobby so please go easy.

I would like to connect some items in serie, so I therefore thought: Why not cut in between the wire and solder those to the pins. If this is wrong, please tell me.

EDIT: As suggested, slicing the wire in the direction of the wire and then peeling it of seems to work. This is how it should look like: