I Read some threads and i guess that it's the fluids AFT that needs to be flushed.
If it was bad clutch or transmission as a whole it wouldn't go back to normal after 5-10 minutes drive. This means that the fluid was thick then it expands as it gets hotter.
Can't afford to get it checked as i am a student and I Sunk all my budget on that car (purchased 3 days ago)