Here you have some links to practise reflexive pronouns.
https://www.englisch-hilfen.de/en/exercises/pronouns/reflexive_pronouns.htm
https://www.myenglishpages.com/site_php_files/grammar-exercise-reflexive-pronouns-2.php
https://learnenglish.britishcouncil.org/english-grammar/reflexive-pronouns
https://elt.oup.com/student/project/level5/unit03/grammar/exercise3?cc=global&selLanguage=en
https://english.lingolia.com/en/grammar/pronouns/reflexive-pronouns/exercises/articles/reflexive-pronouns-mixed-exercise-1942
