OP, you mention that your children are age 5 and 6 . You also mention one of them having a history of some behavior/socialization history Issues in school for the last few years. This a little perplexing unless you are talking about preschool/daycare issues. If so, I would encourage you to spend time on behavior management, nurturing and modeling at home and such so that these issues don’t get in the way of learning in the future.
You’re setting foundations now. Foundations for learning, behavior, studying, socialization, happiness, sharing - all the stuff that will shape your childs future learning and LIVING success. Talk to your school principal or your pediatrician if you have concerns - they are child development professionals.
Finally, examine your home routines. Make sure you balance home/school/extracurriculars. Make time for chill time- not just in front of a screen - make time for interactive family time- play a board game, walk to the park, go bike riding, get an ice cream cone together. Keep life simple - plenty of time down the road for stressing out. 