My hyundai accent 2005 feels like it wants to cut off esoecially when im at a stop light or jus sitting idle,and sometimes i cant start it but after a couple trys it starts whats wrong wit it

Hello, The average lifespan of a battery is between 3-5 years, and I don't think that is your issue unless there are other things going on with the vehicle. The first thing I would check is that the throttle body is clean and clear of debris and carbon deposits, and then make sure the idle air control valve port (inside the throttle body) is clear as well. Stuff builds up inside the idle air control valve(IACV) and the IACV port all the time. The IACV sends fresh air through that port to give the engine just enough air to idle smoothly while the throttle is closed (foot off the gas pedal). When it clogs up, the engine is being choked. This may be your issue, and I recommend inspecting and cleaning first.