How do you navigate toxic peers and environment?

Hey, it's been almost 2 months in my new job being a 2024 graduate, I was very excited to be joining corporate and being able to work on projects that will solve real world problems but all that glamour has since faded away, the learning curve has been pretty steep which is not a problem but people around me are quite toxic af like saying things in a sarcastic way for not knowing stuff, micro managing things and expecting me to deliver high quality results without even proper training. I now understand why people value work life balance so much, for I have been putting long long hours just to get the work done I'm talking like till 2-3 in the morning, now part of it is also me not fully knowing the work but then again my seniors aren't supportive at all, when I have a question their reaction is mostly like "yrr you can't even do this". I have been doubting myself so much since then and my abilities, feeling really depressed about work and life and don't know if it will get better. I have come to the point where I am even thinking of resigning because of lack of support structure, my parents and relatives are all trying to console me and honestly it feels good to have them around me but then again it's getting too much for me and if things do keep like this I would have to prioritise my health and mental health and quit from here. I never thought that the threshold will come so early but it has, maybe I only have few weeks worth of patience left in me. Really need to turn my life around, I will start applying for jobs on the side to see if something better comes up, preferably with atleast a decent work life balance. I know it might sound like a rant but I'm feeling exhausted and it's not even been 2 months properly in my joining. How do I navigate this?