Be "Keen to learn" person, show your interest to improve your skills, work hard, keep in mind that valuable things need so much work and don't ever give up. Do that and everyone will be honored to give you a hand and you will survive.
First, this sounds like a recruitment problem. Maybe somebody (applicant or hiring manager) was not honest during recruitment. However at this stage it is important to find out if any support (training-tools-coaching) can change this situation, if targets are realistic, if you could take on another role or if this is simply the wrong job for you. In that case you would be better off to find your way out. I also like Dania Al-Saheb Al-Tamimi ‚s answer. Sometimes it can be difficult when starting a new job because every company works in a different way and people-processes and systems are different as well. However especially when starting a new job it is in your own interest and the interest of the company to make an extra effort to get you quickly up to speed. If you are in this situation I wish you all the best.