Should i go back to this company?

I think i posted this before but i feel like i still need some advice on it.

I got forced to work full time after poly while all my friends went to uni. When i was applying for full time job, i keep getting rejected after the interview because i got some childhood trauma and can’t speak well then i went for this interview at this mnc and everyone there didn’t want me but one of the interviewer decided to accept me even though everyone else in that company didn’t want to

Then after i join that company, that supervisor that accepted me was very nice to me and he say that i can always go to him if i had problems

Initially i hated it alot that i need to work while all my friends went to uni but after working for some time i start to feel comfortable with the environment there then i wanted to try applying for uni to see if i can get in. At this point i already changed to another supervisor because i’m doing a different project. But when my new supervisor found out that im applying for uni, he start pressuring me to resign like he force me to go to the company portal to take all my leave and write the resignation letter infront of him. It was traumatic as hell then i start to feel mentally unstable and i wanted people to know that i’m not okay so i did something very bad at work that could get me fired but i didn’t get fired because my supervisor and department manager didn’t see it but that supervisor that hired me when no one wants to saw me doing that bad stuff and start giving me the death stare. My department manager even say that if i want to go back in future i can just text him but i feel like i disappointed that supervisor that hired me when no one wants to so badly and i don’t know if i should go back. I feel like It would be selfish to go back because he gave me a chance but i did something so bad and i still want to go back. But i like the environment there alot and there isn’t any toxic people there. Everyone still try to lookout for me and ask me if I’m alright after they saw me doing that bad stuff. I regretted not talking to that previous supervisor when my current supervisor was pressuring me to clear all my leave infront of him and stuff also. The sad thing is i left a company that i felt comfortable in and screw up my uni life because i only got into a part time degree and not a full time one and now got stuck in this bad job market

Another thing is after i left, i feel very lonely in this part time degree then don’t have enough friends to text so i went to text some of my ex colleagues then they got reply but got this girl that is few years older than me, i said something like “someone in the company did something very bad to me, i will tell u 5 years later” and another guy i spam him lots of messages about all the bad stuff that i went through towards the end and they didn’t reply. If i go back they might feel like im only going back because they didn’t reply and i wanted closure and the thing that i send that girl sounds scary

I feel like the working world is kind of scary after going through all these tbh