I have 25000 miles right now. Would I have a better engine life with a turbo kit or a supercharger? What is the average miles you can get out the engine with a kit?

-ive got a 1996 honda civic, i installed the turbo myself.
-How much will it cost me?

so what else can i do to it to add more hp. i know i can add a turbo and a ecu but i cant find the right ones for my model….if you can find them post the link for me…thanks.

E.g. no turbos.
The car is completely stock except already has new tyres / rims, and exhaust.