How add lines in a text to an append request on API Google spreadsheet without destroy my quota

Question

I'm not an expert programmer and I extract some data to a text file, and now I want to import it to a Google spreadsheet. I can do this and it works till quota limits. How can I add all the lines to a single request?

 insert_data_option = 'OVERWRITE'  

        
        with open(r"juntos.txt", "r", encoding="utf8") as inputfile:
            for line in inputfile:
                string = line.rstrip(" \n")
                value_range_body = {
  "majorDimension": "ROWS",
  "range": "A:B",
  "values": [
    [
      string
    ]
  ]
}

                request = service.spreadsheets().values().append(spreadsheetId=spreadsheet_id, range=range_, valueInputOption=value_input_option, insertDataOption=insert_data_option, body=value_range_body)
                response = request.execute()