First track day, did not go so well. Need some suggestions

[Boy Blue]

So i just recently did my first track day in a car. It was allot of fun BUT... I seemed to be over driving my tires allot. So much so that I started chunking my left front. I put the tire pressure up to max. 50 PSI to give a harder sidewall. I lowered it later on in the day to 40 hopeing for better grip, that is when it started to chunk out. I was running Falken 512. 205-50-R15

The car also seemed to lean allot more than i had expected.
Suspension mods: TRD lowering springs and a TRD rear sway bar.

So my question is what do i need to do to the Yaris to help it on the track..

Tires for sure, need something more track oriented. anything else?

Here are a few pics from the track day.