The bad news is that even though numerous RG members suggest ‘simply’ adding a paper/document/chapter etc. manually will help to get it searchable (and indexed) in Google Scholar it is not true.
The bad news is that documents only get indexed/searchable once the search engine of GS picks it up. Usually this happens thanks to the meta-data provided by the journal or publisher that published your work. Alternatively (quite often) material is picked up by GS once uploaded here on ResearchGate (upload in Academia.edu sometimes speed things up) or other sources (like PubMed, EBSCO etc.).
The good news is that in the meantime your paper entitled “Psychological Issues in Bangladeshi Children for Covid- 19: Losing Interest in Education” is indexed in Google Scholar, just search for the title (the author’s name is mixed up but you can easily add this paper to your list. Log in your profile and click on the “L +” logo, use the 2nd option “Add papers” then you end up with a search box and search for the title).