i just quit/Semi fired??

so i worked in ogp and my coach would schedule me 40-42 hours a week (im part time in the system but put my availability as always so thats bad on my part) i got hired early november and this is was my second job ive ever had. i got up to 5.50 points like a week ago and just today 1/13 they are talking to me about it? i thought they were supposed to talk to us when we got to 4.. anyways i had a surprisingly very good shift and as i ask if they still need me or can i leave, my manager says yes i can go but my coach says “what about points”. we end up talking about it and stuff and i end up talking to my coach(shes the most power tripped person in the whole building) and she just says i can either come in every day for 4-5 months without calling in late or anything or i can leave now. i asked about changing availability because she has my schedule all over the fucking place im talking 10-7 one day then 5-2 the next and she said “really do think you could even do that”IN THE WORST TONE EVER WHEN IVE BEEN DOING DIRTY WORK FOR HER WHILE SHES JUST YAPPING ABOUT NON WORK RELATED STUFF i just said yea cus i was just ready to leave. Just figured id quit because ian even like it anyway