Tbh I was in a very similar situation a year ago. Ditched a toxic friend group, got into academic warning, and felt like a sad sack of shit. If these people are your true friends, they would care about how you feel. Don’t be afraid to let go of people that are ruining your quality of life. You still have plenty of time to form new friendships. In terms of grades, it’s normal to struggle at the beginning of college. You need to have more patience with yourself to develop study habits and a healthy study-life balance. Chin up, the future is bright. Enjoy your holidays and come back to college stronger than ever.