I suggest bringing your kid sa church pag well rested and well eaten din. Then bring something na pwedeng pagkaabalahan. My mom used to bring colouring books and crayons nung bata ako then mga activity books like word search, etc. Pwesto din kayo near exit para pag nag tantrum, you can go out. We used to go din pala sa Children's mass sa church para yung expectations ng ibang churchgoers ay na sset. alam nila na madaming bata. Check your church anong time Yung children's mass nila :)