Pug
I have several hundred hours and still feel a bit nervous on occasion.
One thing did make a lot of difference for me though - I started flying on low wings like Pipers rather than high wings like Cessnas. Not sure if in reality there was any difference to the way these aircraft react to turbulence (something to do with wing loading......), but to my mind it did ! So have a go in a Cheetah, and see what you think.
And that feeling? Like when you're at 2000ft and you want to say to the instructor - "I've had enough. Can we land please?"
Been there....done that. It will get better over time, but I promise you, when you have one of those evening flights in the summer when the air is cooling and slowing settling, and when the flight is as smooth as being on glass......you'll forget all about turbulence !