93' Lexus es300 Stalling at idle

It all started yesterday when i was driving and the car decided to stall on me at idle… Now i just keep the car on by reving the engine…I replaced the fuel filter hoping that was the problem but it did not solve anything… but when i let the car sit for a while it will be normal for a good 5-10 minutes then at idle it will stall… any help? I also did check the alternator i am get 14 volts out of it as well…help will be surely appreciated!

can someone help me please i really need this car for work…