I mean you have a large amount of inputs & outputs adding to the total amount of bytes for that tx and your fee avg out to 60sat/byte which is NG


you used cex.io so not "legit" wallet i assume you control some of the coins that were on the recipient to maybe attempt a child pay for parent, meaning you increase the fee of the child tx to boost the total fee so that miners will include both tx's or the multiple, but i dont even think cex.io even will let you do that you seem to be at their mercy hopefully someone more knowledgeable than I can help you here bud