\documentclass{article}

\usepackage{geometry}

\geometry{
    paperwidth=5.5cm,
    paperheight=4cm,
    margin=1.1cm,
    top=0.5cm,
    bottom=0.5cm
}

\pagestyle{empty}

\usepackage{amsmath,amssymb,amsthm}
\usepackage{commath,mathtools}
\usepackage{parskip}
\usepackage{graphicx}
\usepackage{xcolor}

\usepackage{adjustbox}

\begin{document}
    \adjustbox{right=\linewidth}{Heeeei!}

    Lorem ipsum

    \adjustbox{right=0pt}{(4 pt) }Beschrijf \textellipsis

    \adjustbox{scale={2.5}{1},rotate=20}{Hallo!}\adjustbox{scale={-1}{1}}{Hallo!}
\end{document}