Here is the final design for my punctuation mark and after playing around with the sizing and getting my punctuation mark small enough to fit on a keyboard as well as making it look nice and not weird, i finally figured that this is the best way to portray my punctuation mark.
I initially got the idea from current voltage maps where you use the icons like these:
I thought that making a design like the switch icon would be ideal because the idea for my punctuation mark was to give people the idea that the sentence before is irrelevant to the next sentence.
Also when people want to say something or add something to the sentence, people use the – but a longer one. Which mine in a concept is a broken long dash in which i could tie it in to making the sentence irrelevant.