Talking as someone who has recently been through the lows of failing and the highs of passing, failing is crap and it messes with your head but passing (and getting ROG’s fireworks) is worth it. First lesson then, is to digest your mistakes and failures, understand that they occurred because you haven’t had enough quality, supervised time on the road, and persevere.
As has been said, you didn’t fail because you hit the markers, you failed because you didn’t look in your mirrors enough. If you had been looking enough you would have corrected your positioning. I know you read it everywhere - mirrors mirrors mirrors - but it is so true. Instead of thinking “I’m going to slow down/speed up/turn, I must look in my mirrors” you should instinctively be looking so often that every slow down/speed up/turn is covered by your mirror checks because you are doing them so often. And think of it as a “scan” from left to right, taking in what’s in front too.
What you need to do to get to that point is up to you. (Start again with your training/try class2 first/go even smaller and start with vans? Whatever you decide, do your research into training schools). It took me a long time to a) look in my mirrors enough and b) understand what I was looking for/seeing, but I’m telling you, when it falls into place you will know it and feel it in your driving. Yes, there is a lot to think about, a lot of pennies to drop, but you want to deserve that pass don’t you? You don’t want it to be a fluke. So you need those pennies to drop and for it all to come together. Then you will feel ready to pass and deserving of it. And yes, I didn’t believe it either when people said “you will get it, you will pass eventually etc” because failing can mess with your head to the extent that you think you will never improve.
Good luck and I hope in a few short months you will be telling us how it’s all fallen into place.