Should I change my flight?

Yiwu-Guangzhou-Manila
My flight from Yiwu is scheduled to arrive at baiyun airport at 12:40, and then I have a connecting international flight to Manila that is scheduled to depart at 14:15.
My question is, I only have 1.5 hours gap from my domestic arrival to my international flight. Will I be able to make it? How far is the domestic arrival to the international departure check in? Should I forego bringing check-in luggage, in favor of just a handcarry bag to eliminate time wasted on baggage claiming? should I do online check-in? what are the chances of china southern flights to be delayed? what if my domestic flight is delayed to the point that i dot make it to my international flight? is rebooking a new flight free?