Nice job but if I had to offer some critique...I'd look at your braking technique in the oversteer moments. You were on, off, on, off which at threshold braking will upset the car. So when you went to throttle the suspension couldn't set the rear quick enough so the back end came out.
Recommend developing a reference point at the end of your braking zone so you know where to end braking. That will facilitate a smooth build up of brake pressure and release. So the front end stays planted and then the rear takes a set when you get back to throttle and you have more grip.
The fast lap looked much better.
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