Changes in behaviour, feeling and thoughts are common after traumatic event. For some these are short-lived changes, for others it can be long term effect. A person can do many things at their level that can help them cope with adevrse changes following trauma:
1) talk about traumatic incident with trustworthy and supportive person. This will help you process the incident and your feelings about incident better
2) try some relaxation exercises to reduce tensions that are common post trauma
3) improved self-care through proper diet, exercising, doing things that you like, spending time with people you like.
Next Steps
Sometime doing a this by self is difficult and we need a little more help to deal with such situation and plan our next steps. Please feel free to approach a professional, if need be. It's okay to talk and its okay to seek help.