mind full of everything

My mind is full of everything right now I'm thinking so much doubting so much worried about so much my past I still in the present but it's kept in a box chained and labeled so that part stays trying to get my ex to stop his bs and move on like I have I got a lot of mindful thoughts anxiety and everything else boxed in I don't hardly talk much to people so that's why it's bottled up inside I tried but arguments happened and moody moods so would keeping a diary and writing it all down to release my mind full of crap would that be a good thing n help or nah!! Cause I'm stuck in middle wanting diary to have less in mind and mor room so not over loaded or keep it as it is where its full and its here their everywhere.