159k miles 2011 bad intake manifold - how much longer realistically?

My baby has gone through quite a bit the last couple years alone:

Full water pump & flush replacement (2023)

Got rear ended and replaced rear bumper and sensor (2024) (i know it has nothing to do with the engine directly but still damage was made)

Serpentine belt snapped on the freeway so that got replaced immediately (2025)

Now she's in the shop again for check engine light turns out the intake manifold is smoking and sucking in air.

We bought it NEW in 2011 so all the repairs and miles have been made by me (to a mechanic obvs).

Am I doing something wrong to be having all these problems within 3 years? Or is it just the price with an aging car? Does she have another 50k miles left in her?