Hi at the moment our disk quota of our hosting server is increasing rapidly and wee are way over our quota. I'm not sure what is causing this issue. We didnt add any files lately, but somehow each week `0gb of disk space is filled by Magento. How can we decrease this?

 These are some large files and folders at the moment:

17G .

7.5G ./var

6.9G ./pub

5.9G ./pub/media/catalog

5.9G ./pub/media

5.6G ./var/po_image_optimization_original_images/pub

5.6G ./var/po_image_optimization_original_images

1.3G ./var/page_cache

995M ./pub/static

749M ./pub/static/frontend

555M ./vendor

336M ./vendor/magento

280M ./var/view_preprocessed/pub

280M ./var/view_preprocessed 268M ./var/cache

215M ./bridge2cart 156M ./pub/static/_cache

114M ./vendor/magento/magento2-base

101M ./vendor/mpdf/mpdf

101M ./vendor/mpdf

Really need some help