Schedule conflict

Hello po incoming second year here, I just wanna ask what to do kasi po when we enrolled last monday, we did not know na kailangan pala walang other classes after ng CE days so we proceeded to that since wala rin naman sya sa guidelines nung una. Now if we were to adjust, it wouldn’t be possible since mag coconflict na yung sched even if we opt for night classes and even if we change our section for the major courses. Im just wondering what should we do about this?