You haven't shown any code. What class are you using? What package(s) are you using? What you have shown is not regular LaTeX output. What did you try with tocloft?
Below is an MWE based on the article class and the tocloft package that gives you the LoF that you are after.
% tocloftprob.tex SE 562533
\documentclass{article}
\usepackage{tocloft}
% change LoF title and position
\renewcommand{\listfigurename}{LIST DE ILUSTRACOES}
\renewcommand{\cftloftitlefont}{\hfill\Large\bfseries}
\renewcommand{\cftafterloftitle}{\hfill}
% change appearance of figure number
\renewcommand{\cftfigpresnum}{Figura } % put this before the number
\renewcommand{\cftfigaftersnum}{ ---} % put this after number
\setlength{\cftfignumwidth}{5.2em} % need more space for changed number represenation
\begin{document}
\listoffigures
\clearpage
\begin{figure}
\centering
AN ILLUSTRATION
\caption{A figure}
\end{figure}
\end{document}
Perhaps some of the above is irrevelant as you seem to have managed (I do not know how) to change the title and its position for the LoF.