Don't worry about it, as i said its a very common trate with PPL students. With FS experence and without.
Next time you go for a lesson take a pack of post-it notes with you and tell your FI of your concerns. Then go and do a bit of revision with everything covered. An hour or two at this stage sorting the problems out will save you hours later on if you can nip it in the bud.
But the main thing is to have a laugh at yourself and enjoy the challange. If you get all wound up and tense. You will start gripping the controls with the old white knuckle death grip and the whole thing will be 10 times worse. Let the plane do the flying, you just look out the window and give it a poke in the right direction.
Enjoy your not the first and you won't be the last.
BTW watch out for all these tail dragger types. They will use any excuse to get pilots to fly a tail dragger. They know fine that they will ruin your enjoyment of flying tri-wheel training aircraft, and start you down that slippery slope to becoming a PFA owner. With the resulting change to wearing cords and checked shirts and knowing what all the different grades of oil do.
MJ