Clutch goes out when the car gets to operating temp

What is your question?

When my car is cold I can get in and drive just fine for about 20-30 min when it reaches operating temp the clutch goes out almost completely the clutch pressure plate and throw out bearing was replaced less than 10000 miles ago and the car sat for about 3 years since I hear no noise nothing else except the clutch just goes out I've tried bleeding the slave cylinder and it helped a tiny bit but it still is happening

What makes this problem better or worse?

When the car is cold it works just fine until it reaches operating temp

How long has your 2005 Hyundai Elantra had this problem?

A few days