## 3 Materials and Methods
### Balanced Distribution Across Labels
#### 3.2.3 Annotation Guidelines  
The complexity of mental health issues demands a precise and nuanced approach to data annotation. To address this, we developed a multi-class label framework for our annotations, drawing on established root cause categories from recognized mental health resources like Health Direct Australia and Beyond Blue [75].  
\begin{table}
\begin{tabular}{p{28.5 pt} p{113.8 pt} p{113.8 pt}} \hline \hline \multicolumn{2}{c}{**Root Cause Label**} & \multicolumn{1}{p{113.8 pt}}{**Rationale**} \\ \hline P1 & Personality & \begin{tabular}{c} _Essence of human life_ \\ _it?unfortunately_ _i am unable to feel it_. \\ _do not belong anywhere_. _Everything is same i want diversity_. \\ _1 do not have any moral values or guilt_. \\ _actualization_ [_Some text omitted for brevity_] \\ \end{tabular} & Low self-esteem \\ \hline P2 & Drug and alcohol & \begin{tabular}{c} _I use cannabis every day. I look forward to it because I feel so much_ \\ _better/content when I use. However some say it’s actually making_ \\ _any depression and anxiety worse so it’s like a vicious cycle [_Some text omitted for brevity_] \\ \end{tabular} & Drug consumption \\ \hline P3 & Early life & \begin{tabular}{c} _When i was a kid i used to be really skinny and too short for my_ \\ _age. I got bullied a lot because of that_. _I’m 20 y.o now, and i_ \\ _think i have distorted view of my own appearance. I keep forgetting that i’m the size of an adult nowadays, and i feel like i’m_ \\ _slimiter and weaker than i actually am. I still feel like a little boy. I keep feeling like i’m still not big enough. [_Some text omitted for brevity_] \\ \end{tabular} & Bullying, poor body image since \\ \hline P4 & Trauma and stress & \begin{tabular}{c} _No one LITERALLY_ _NO ONE has talked or even invited me to_ \\ _hung out for New Years. I just looked at my mates story and it’s my_ _3 _“closest friends” hanging out and having fun. Why does everyone_ \\ _som to_ _hate me? I’m not ”too nice” or a count to people, I don’t make_ \\ _a fuss and I just still. All my life have seem to ignored for some_ \\ _reason and it’s driving me fucking instant_ \(F...\) _everything right_ \\ \end{tabular} & Loneliness, social rejection \\ \hline P5 & Trauma and stress & \
\begin{tabular}{c} _I'm miserable. Things went really bud when I was \(16\) and_ \\ _my parents split up and my cousin killed himself within a month._ \\ _my parents splitting up was and is still extremely bitter,_ _their hate for each other consumes them and they both want each_ \\ _other death. When they say it out loud it’s normal for me now_ \\ _but it feels so wrong. My dad says, he's gonna make her homeless. So I’m going to be paying 6600 a month when I will only be_ \\ _earning about £200 or less. I had a weekend job which I left because_ \\ _it was too stressful working. it is all so wrong [_Some text omitted for brevity_] \\ \end{tabular} &
\begin{tabular}{c} Relationship issues, financial disorganised \\ attachment, bitterness, sadness \\ _the_ _som to From these resources, six predominant root causes were discerned, as delineated in Figure 3. This serves as a guide for root cause identification. For the purposes of our study, we selected four out of six root causes: personality factors, drug and alcohol abuse, early life environment, and trauma and stress. These categories were chosen due to their broad representation of areas of concern in mental health, their frequent discussion in both academic literature and public discourse, and their comprehensive encapsulation of the potential root causes of mental health issues [76; 77; 78; 79; 80; 81; 82].