My son has managed 3 honors courses every semester for the last 5 semesters, he still has a 4.0 so it is doable. Ironically he accidentally signed up for Math Honors(read with Mom’s ‘are you crazy’ voice?!)…that too is doable, although it wasn’t his intention but nothing else ‘fit’ his schedule & it involved an additional mandatory programming course which he actually enjoyed. He tried several semesters for 4 courses, but they have never worked out for him either not available or scheduling conflicts. One of his latest courses (for example) his roommate took regular - same instructor - the difference was more extra credit options & a curve for regular - no curve for honors. So getting an A involved lesser degree of mastery, than an A in honors for that particular class (every course is different). Be prepared to study to do well & have enough time for extra projects.