I've been skipping class for a month or more

I got into college in early April this year and at first I've never skip a day for three or two weeks. So one day, I accidentally woke up late for a class and the class was 2 hours and I realized I'm an hour late, so I decided to skip it and just get ready for the next class after it. As I was getting ready, I remembered my professor told me to write a reason for absents so i checked out a google form he provided in a group chat and there I see a rule that he put where if a student is absent for 2/3 days they will be reported to the administrative, and my curious head decided to test it out.

So now it has been a month or maybe more classes that I skipped. I've never went to class for the past month except for 1/2 exception. I even skipped a progress test and now in two weeks I'll be sitting for a mock exam. Right now I even feel weird about going to class. But I do know that I need to study for the exam since my final exam is also really close. I imagine the professor would notice if I start going to class again because before this he always do manual headcount, and I'm worried he'll notice an extra student in his class.

Should I study on my own, I could but I couldn't at the same time because I'm lazy. I probably could because I can easily understand something even if I only read a book.