B&M compared to Online, psychology

[Vancity82]

When I play online I'm covinced I'm better than anyone at the table, regardless if I've seen them win many times, or I know they're a multi tabler like myself. I have the confidence to play my game and grind out my hourly rate.
When I sit down at the local B&M suddenly everyone's a pro in my mind and I'm completely outmatched and start to second guess my strategy and try and emulate theirs (probably a bad idea), does anyone else have the same affliction?