CNA hospital jobs with 8 hour shifts?

Hello everyone, I am new to these boards and to nursing in general!I have obtained my CNA certification, but I have been put off of jobs searching due to fear of 12 hour shifts. School starts in about 2 weeks, and I dont want to chance compromising my grades by working myself into the ground on the weekends.Does anyone know if there are 8 hour shifts available in any Tulsa or Owasso hospitals? I dont necessarily mean openings, I just want to know if it is possible to get an 8 hour shift job.Thanks in advance