Every child misbehaves sometimes - these are some of the reasons why. For NSPCC advice on how to encourage better behaviour see our guide: http://www.nspcc.org.uk/help-and-advice/for-parents-and-carers/guides-for-parents/better-behaviour/better-behaviour_wda90710.html
This "Worry Tree" is a poster I would love to hang in my classroom. It is a resource I think students could refer to, when needed, to help them regulate their emotions and deal with their "problems" in an effective way. Eventually, they will be able to follow this process on their own, and develop their emotional competence - which is an important skill that underlies positive mental health (Reinke et al., 2011).
10 WHAT Questions to Develop Growth Mindset in Children. A few questions to ask your child, encouraging a shift in thinking towards Growth Mindset. 10 questions to help children develop a growth mindset. Free download from twinkl.co.uk