Is my tolerance normal?

I can get very drunk off of two strong cocktails (like, two Negronis/ a Negroni and a martini…) I also drink about once-twice a week I am slightly underweight according to BMI, and seem to have a pretty slow metabolism But still… I’m 19, and my friends seem to be like black holes when it comes to their ability to consume alcohol and keep their motor function intact. On bad days I can be borderline passed out on the floor after two drinks…