Can't get rid of blank page

Question

I'm writing my dissertation in overleaf but I've got a blank page between my aknowledgements and my glossary. I've tried using oneside and openany but it still stays. Below is the part of the main.tex file that contains the relevant code

% book - Default class for a normal book
\documentclass[a4paper,12pt,oneside,table]{book}

\usepackage{packages}
% Almost all the settings are defined in packages.sty
% Put a grey textual watermark on document pages (PDF mode)
%\usepackage{draftwatermark}
% If you want to change the default DRAFT text
%\SetWatermarkText{DRAFT}
% If you want to change the default grey color of the text
%\SetWatermarkColor{red}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%   DOCUMENT: an ordered list of files    %
%             that you can include or not %
%             in your document            %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}

% Title Page %
\include{frontmatter/titlepage}

%% FRONTMATTER %%
\frontmatter

% ABSTRACT %
\include{frontmatter/abstract}

% ACKNOWLEDGEMENTS %
\include{frontmatter/acknowledgments}

% GLOSSARY %
\include{frontmatter/glossary}

% CONTENTS
\include{frontmatter/contents}

%% MAINMATTER %%
% The pages inside of mainmatter are in Arabic numerals and the chapters will have numeration
\mainmatter

%\part{If you want parts}
\include{1_Introduction/intro}
\include{2_Background/background}
\include{3_LiteratureReview/litreview}
%\include{chapter4/ch4}
% \include{chapter5/ch5}
% \include{chapter6/ch6}

%% APPENDICES %%
\appendix
\include{appendix/appendix1}
%\include{appendix2/appendix2}

%% BACKMATTER %%
% The pages inside of backmatter are in Arabic numerals and the chapters will not have numeration
\backmatter

% BIBLIOGRAPHY WITH BIBTEX %
\include{backmatter/bibliography}
")

% INDEX %
\include{backmatter/index }
\end{document

EDIT: Below are my aknowledgementand glossary sections:

% ========================= Acknowledgments ==============================
\providecommand\phantomsection{} \phantomsection
\thispagestyle{empty}
\renewcommand{\baselinestretch}{1}\small\normalsize
\begin{center}
\textbf{ACKNOWLEDGMENTS}\\[3\baselineskip]
\end{center}
\renewcommand{\baselinestretch}{1.66} \small\normalsize%
I acknowledge the people who helped me.

\newglossarystyle{modsuper}{%
\setglossarystyle{super}%
\renewenvironment{theglossary}%
    {\tablehead{}\tabletail{}%
     \begin{supertabular}{@{}lp{\glsdescwidth}}}%<----no margin
    {\end{supertabular}}%
\renewcommand{\glsgroupskip}{}%
\renewcommand*{\glossaryentryfield}[5]{%
\glsentryitem{##1}\glstarget{##1}{##2} & ##3\glspostdescription\space ##5\\[2pt]}%
}

\glsaddall
\printglossary[type=main,style=modsuper,nonumberlist]
\thispagestyle{empty}

Answer 1

I managed to find an answer here: Remove page break before glossary which gave me the line of code:

\clearpage\begingroup\let\newpage\relax\printglossary[title=Glossary]\endgroup

which, when put at the top of my glossary file, solves the issue