There is a difference between harsh critique and ‘hate’. Harsh critique is constructive and aims to make you better at what you do, whereas hate comes from a mean-spirited person trying to break you down. You’ll learn to recognise the differences between the two and know when to pay attention, and when to brush it off.
It is vital to develop a thick skin and learn to detach your emotions from your work. Remember that a critique is feedback on your work, not on you as a person. We all struggle to deal with harsh critique at times, but it’s up to us to not let it affect us.