Further reading
You can learn more about the application of a forklift at https://www.youtube.com/watch?v=Ne2s2AtUUUU&ab_channel=ToyotaForklift.
You can increase the height of loading and unloading your forklift with the help of various mechanisms, such as chains, pulley systems, and so on. You will learn about this in more detail in the coming years when you further your robotics courses/exploration.