\centering
\begin{subfigure}[t]{0.24\textwidth}
\centering
    \scalebox{0.6}{
    \begin{tikzpicture}
    % Define the box
    \node[draw=brown, thick, rounded corners, text width=\boxwidth, minimum height = 9.5cm, inner sep=10pt] (box) {
        % Heading
        \centering
        \captionsetup{justification=raggedright, singlelinecheck=false}
        \textbf{Concept 0} \\
        % Draw a horizontal line
        \tikz \draw[brown, thick] (0,0) -- (\linewidth,0);\vspace{1em}
        % Lines of text\
       \fixheightboxapp{
 in the \highlight{dream} with the\\
In this \highlight{dream},\\
 awake in the \highlight{dream},\\
I survived \highlight{veteran} suicide.\\
 Or in a \highlight{dream} rel\\
 toxic relationships with men.\\
,500 \highlight{military} sexual assaults\\
 \highlight{shot and killed himself} in\\
 ago I had a \highlight{dream}\\
 only dated for a few\\
 after having a \highlight{dream} that\\
harmed while in a\\
 was a \highlight{dream}. This\\
 \highlight{shot herself} in the head\\
, on a medical discharge
        }
    };
\end{tikzpicture}}
\caption{dreams, military, suicide}
\end{subfigure}
\begin{subfigure}[t]{0.24\textwidth}
\centering
    \scalebox{0.6}{
    \begin{tikzpicture}
    % Define the box
    \node[draw=brown, thick, rounded corners, text width=\boxwidth, minimum height = 9.5cm, inner sep=10pt] (box2) 
    {\centering
        % Heading
        \textbf{Concept 5} \\
        % Draw a horizontal line
        \tikz \draw[brown, thick] (0,0) -- (\linewidth,0);\vspace{1em}
        \fixheightboxapp{
. Our \highlight{car} clipped the\\
 his \highlight{car} multiple times.\\
 my \highlight{skull}. It wasn\\
 \highlight{raped} at least three times\\
 hit another \highlight{car}, causing\\
 22 year old man (\\
 were later found and her\\
 a lot of \highlight{death},\\
\highlight{SA} and \highlight{death}\\
 of \highlight{sexual abuse}, two\\
 \highlight{murder-suicides} each\\
 tried to apprehend the two\\
/SuicideWatch and\\
 after service. Fires are\\
 experiences with SSRIs
        }
    };
\end{tikzpicture}}
\caption{accidents, death, sexual abuse}
\end{subfigure}
\begin{subfigure}[t]{0.24\textwidth}
\centering
    \scalebox{0.6}{
    \begin{tikzpicture}
    % Define the box
    \node[draw=brown, thick, rounded corners, text width=\boxwidth, minimum height = 9.5cm, inner sep=10pt] (box2) 
    {\centering
        % Heading
        \textbf{Concept 6} \\
        % Draw a horizontal line
        \tikz \draw[brown, thick] (0,0) -- (\linewidth,0);\vspace{1em}
        \fixheightboxapp{
 my \highlight{parents} were kids,\\
 my \highlight{childhood} over to my\\
 my \highlight{mom divorced} my violent\\
 I was a \highlight{child},\\
 had an abusive ex and\\
 my \highlight{mother} died 2 years\\
 memories of my \highlight{childhood},\\
 abusive and cheating gay ex\\
 first serious boyfriend repeatedly d\\
 realize TW: \highlight{childhood} sexual\\
 my trauma from \highlight{childhood},\\
 my now ex of 4\\
 My \highlight{parents} were divorced when\\
 my \highlight{parents} raised me and\\
 throughout my \highlight{childhood} by my
        }
    };
\end{tikzpicture}}
\caption{childhood abuse, family trauma}
\end{subfigure}
\begin{subfigure}[t]{0.24\textwidth}
\centering
    \scalebox{0.6}{
    \begin{tikzpicture}
    % Define the box
    \node[draw=brown, thick, rounded corners, text width=\boxwidth, minimum height = 9.5cm, inner sep=10pt] (box2) 
    {\centering
        % Heading
        \textbf{Concept 9} \\
        % Draw a horizontal line
        \tikz \draw[brown, thick] (0,0) -- (\linewidth,0);\vspace{1em}
        \fixheightboxapp{
 extremely frequent \highlight{flashbacks} the \\
 me bad. The \highlight{flashbacks}\\
 When I was \highlight{molested}\\
 have vivid \highlight{flashbacks}. All\\
\highlight{aphobia} in the last\\
 about \highlight{flashbacks}.
I\\
 \highlight{phobia} related to the\\
 after i was \highlight{sexually assaulted}\\
 young child, was sexually\\
 having nightmares and \highlight{flashbacks}\\
 \highlight{repressed memories} are a\\
 because I have \highlight{flashbacks} several\\
 always thought the \highlight{memories}\\
 of scolding via email\\
 like I was \highlight{abused}.
        }
    };
\end{tikzpicture}}
\caption{flashbacks, memories, sexual abuse, phobia}
\end{subfigure}