Hi Chrissy!
Yes, journaling is an excellent way to keep track of your days. I include what happened, when and where, and anyone that I might suspect was out. Also things that happen that are like unusual. Include thoughts and what you hear in your head.
Also, getting other parts to journal too can speed up treatment.
The one thing that played against me is the psychotic part of bipolar. I told them that I hear voices and they say that I'm delusional or skitzo, and gives me an antipsychotic that never works and does more harm then good. So I started journaling and keeping a records book on my iPad.
This illness is so misunderstood and/or rejected by mental health providers that they are more likely to dismiss it as a possibility then embrace it. This usually means getting DXd takes much longer than it should take. Keeping a record or journal is a must.
I hope that you receive the help that you require sweety!