Mine just turned 16 and still looks like new..... Rarely spent a night outside and has lived in moderate climate. With 120k on the OD , it runs great.
One thing that this car has had since new in 1997 is that if a problem showed itself, it was repaired immediately.
Like others , I will keep her until a lack of a drivers license makes us part ways..... Which will not be before my 100th birthday I hope.
Your problem sounds like a fuel system delivery problem .... Fuel pump, fuel filter, injectors need a check .
The nice thing about using this forum is that the problem you are having has happened to someone before you . Discribe the problem with all symptoms on a timeline and you will get an answer.
GL.... Keep her if you can