Changing goals is less of a head fuck. My all time PB on bench is 190kg. I hit 170kg the last two cycles (a few months back for the 2nd). Right now I'm trying to hit 3 x 8 x 140kg. It's kinda a given I wont do 190kg again (never used a shirt so... maybe with a shirt lol).
You could reach this no question I don’t believe in the mindset you can’t but the mindset you can and will you are big and strong enough to do it there’s no stopping what you can do