If a cartilage isnt supposed to be pierced with a gun then how is it supposed to be pierced?

Answer:
With a needle. You got it done already, there's nothing to do. Just learn from your mistake and hope for the best.
Answer:
It should be pierced with a hollow needle that actually removes a little sliver of cartilidge. With a gun, cartilidge is just pushed back, which can irritate the piercing and possibly keep it from healing. If yours isn't bothering you, then there's no need to worry. If you notice a bump on the back of the piercing, unusual pain, swelling or any bleeding/ pus, take the earring out and get the piercing checked.
Answer:
its first pierced with a hollow needle then the actual jewellery is put in.

basically it feels like its being pierced twice.

Answer:
With a hollow needle at a professional piercing/tattoo parlour.
Answer:
with a hollow needle dummy

you already have it done so there's no point in taking it out, just make sure you clean it really well

Answer:
its supposed to be pierced with a hollow needle.

just keep it clean

Answer:
they shove a massive needle in by hand