Arriving on SQ 392 from Singapore at 0805 hrs on 9/5/2022 and departing same day on a separate ticket Turkish Airlines TK 1449 at 1215 hrs.  I require assistance to collect luggage and process Customs/Immigration and Check In for my Turkish Airlines Flight.  I am 79 years old and my concern is that I will not be able to connect through in sufficient time on my own.