I have the following table:
\documentclass[a4paper, bibtotocnumbered,liststotoc,12pt]{scrartcl}
\usepackage[paper=a4paper,left=40mm,right=20mm,top=20mm,bottom=20mm]{geometry}
\usepackage{caption}
\captionsetup{labelfont=bf}
\captionsetup[figure]{aboveskip=10pt}
\captionsetup{justification=justified,singlelinecheck=false,font=small}
\usepackage{rotating}
\usepackage{lscape}
\usepackage{booktabs}
\begin{document}
\begin{landscape}
{\captionof{table}{Regression Results H1 - Panel A (Weighted)}
\begin{scriptsize}
\begin{tabular}{\columnwidth}{@{\extracolsep{\stretch{1}}}{14}{r}@{}}
\toprule
& $PER I$ & $PER II$ & $PRED$ & $SM I$ & $SM II$ &$AQ I$ &$AQ II$ &$DACC I$ &$DACC II$ &$TL$&$CC$&$UC$&$VR$\
\midrule
Estimate & 0.0020 & 12.6092 & 0.0008 & -0.0291 & 0.0021 & -0.0014 & -0.0099 & -0.0081 & 0.0091 & 0.2199 & 0.0062 & 0.0072 \
StdErr & 0.0088 & 12.2425 & 0.0006 & 0.0070 & 0.0017 & 0.0011 & 0.0085 & 0.0079 & 0.0047 & 0.1849 & 0.0076 & 0.0058 \
\
\
Observations & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482 & 1,482\
$R^2$ \
\bottomrule
\end{tabular}
\small
\caption{\textit{Notes}: xx}
\end{scriptsize}}
\end{landscape}
\end{document}
I want to add a section title, but when I do, it creates a new page for the section title. The other solutions proposed on SE do not work in my case.

\begin{landscape}always starts a new page. – leandriis Aug 19 '20 at 12:05tabular*environment to the full width of the rotated text block, where is the section title supposed to go? – Mico Aug 19 '20 at 12:55