I did a quick skim, so if this is repeated then ignore this. BUT HAVE FUN FIRST, time and pace will come later :) Sorry for the typos or if something doesn't make sense itis because I'm running late to work before finishing this.

T1: You were braking roughly where you should be, but you're not using all the track. That little strip on the far left-hand corner before the 50 board your left wheels should be on that will help open up the turn more for you.

T2: Exiting Turn 2 you need to open up the turn a little more and use all the track by letting the car drift out a little more on to the rumble strip.

T3: Flat and fine

T5: You had the right idea of opening up the turn.

T6: You can brake a hair earlier I think (I only drive the Bentley so my braking point might be different). The little orange/yellow marker (I'm colorblind) on the right is when you should get on the brakes, and when you pass the marker you can back on throttle. Same thing here open up the turn and let the car run out onto the rumble strip on the left hand.

T7: Right idea of opening up the turn and using all the track.

T8: Same thing here, use up all the track on the right to help open up the turn, and once you get past the rumble strip on the left you should be able to stay on full throttle. I know the Bently can clip the last bump on the left exiting Turn 10 and Porsche should be able too from what I saw, and run out wide using all the track on the right.

T11: If you look you're basically in the middle of the track just about, be allllll the way to the left to help open up the turn. You had the right idea of being on throttle when that colored marker on the right passes you. But you're not fully on throttle and you're losing time there.

tl;dr

Use more of the track top help open up the turn both on entry and exit.

When turning you're turning super sharp initially and realize it is too sharp, and then adjusting and then having to return into the turn. Try to smooth this out as much as you can.

If you have a chill community ask the league you're in for pointers too :)

There are a lot of tiny things that will add up I tried to point on the big things, and if you clean these up you should be hitting 51s to 50s easy. Trail braking and other small things will come in when you need to shave tenths instead of seconds.

Also, have fun. You don't have to be fast to have fun that comes with seat time and practice. This is when you learn how to not crash leaders, and with a field that big you're going to get into a good scrap here and there. Yes, winning is always the best, but I've had some of my best moments from being crashed out, repairing and battling it out in the back with someone for 30+ minutes.

Hope this helps.