Well done on the reps, you seemed happy with the achievement and that counts for something!
Agree to the others, I think that was your 3RM on that day, but there is lots of room to grow. I am sure you can see yourself that your bar path is not very consistent and that needs some focus I would say. You may need to have some more stability/mass in your shoulders and upper back. Are you forcefully retracting your shoulder blades to create that large chest?
Was this a bench only day? did you do anything else to warmup before (other than bench pressing)?
To work on upper back stability before benching, I would recommend to do face pulls or some other external rotation movement with a light rubber band before benching. Also I often do pullups (static holds not reps) during my bench warmup sets to get a pump/solid base in my lats. Might be placebo but it does work for me.