I have no idea of the real statistics but I imagine that a normal two pilot professional crew would screw up the landing once in something like a 100,000 landings. A single pilot professional flying a normal airliner might screw up once in 50,000 landings.
A typical PPL flight simmer would screw up once in less than 10 landings. Would you want to take those odds?
I say that having achieved 7 out of 7 successful landings in a BA full motion 777 simulator myself, as a fairly experienced PPL and FS pilot. (with some help with flaps and using auto throttle).
The first thing you would want to do if put into that situation is to get help over the radio. Do you know which is the transmit button as opposed to the A/P switch? They are right next to each other on the yoke.