The problem with the idea of ¨moving on¨ as expressed by some people is that many people interpret that as needing to try to stop thinking about the event.   For minor disturbing events, a few nights sleep and talking to a few people about it might be enough.  

However, for a real trauma, the memories are laid down differently in the brain (more in the deep limbic system and less in the cortex.)  People can develop Post Traumatic Stress Disorder (PTSD.)   In the case of PTSD, one of the symptoms is trying to avoid memories and triggers of the events, and this actually impedes the healing when people just try so hard to move on.  

So yes, I think the moving on process needs to be different depending on how traumatic the events were.  Part of what makes things traumatic is not just the event, but how much support you had during the event and how much permission you continue to have to express it to supportive people.

There are many ways to move on, but for major events we have to mentally process them, in a similar way that food has to be digested and broken down--- it doesn´t just move through the system.  Most people need to talk about what happened, or at least acknowledge it internally by writing about, dreaming about it, creating things from it.

I am afraid your question is too general to give good specific techniques, other than to say ¨just moving on¨ is not necessarily possible and often slows down the process if you try to force yourself to do so without acknowledging how seriously difficult it is and how it changed your view of the world and of yourself. 

It depends on how bad your experience was, <a href="https://www.italki.com/user/980053" class="">Mohammadreza</a>. I afraid, you have to provide us with more details.

Just joking.