Posted: Yesterday at 12:39
First thing I would say looking at your plan is to drop the second of the long runs (or the first), and only do one long run a week ... back to back long runs is a recipe for disaster\injury when you are not used to it or coming back from injury.
Second I would say keep your other mid week runs at 4 or 5 so your total mileage isn't ramping up too quick.
Given your remaining time to train, its going to be a tough ask on the day but can be done, so best to go in under-trained and able to pull it out on the day (after all you have youth on your side), rather than over-cooking it too much beforehand and being finished before you even start.
Not being an expert but how does :
4, 4, 4, 7
4, 5, 4, 8.5
5, 4, 5, 10 (do this one v. slow as its your confidence builder .. aim to finish it not for times)
3, 4, -, 13.1