Hello, im new here and i plan to stay here.
anyways my celica hasn't been started for over a year and a half, and now it doesnt start.
It doesn't turn over, and im not a car person but i plan to research about cars because i found my new love for them

Is your battery dead? Most likely problem. Do you hear the engine cranking, or does nothing happen?

If nothing happens, start by replacing the battery. If the engine cranks afterwards, do a tune up (spark plugs, wires, fresh tank of gas, etc.) to get your car back into good running condition.

thanks for the reply, the car's electronics like stereo works fine still but it doesnt turn.
just wondering how much would it cost to repair a st205?

Whereabouts are you? If you're in the US (I assume not, assuming this isn't a swapped ST205) it's gonna be hard to find parts. RPMGarage.com ships everywhere, reliable seller, top notch stuff.

What happens when you try to turn it on, anything? Check to see if your starter is in working order.

Try a jump start or give the battery a full charge overnight. The dead/nearly dead battery would be my first thought seeing as you said it hasnt been used in a year and a half.
Seeing as you say the radio and stuff still works, this may not be the issue, it'd be the first thing i'd try anyway.

Good luck!

I left my old 86 Camry I had a few years back off for a about a year & 3 months and same thing happened. Turned out to be there was no spark and had to replace the starter and ignition coil and the battery too. Apparent if you are using a standard wet cell battery the acid can go stale after a long time. It's good to start your car and warm it up here and there if it's not gonna be used for some time.

Charge or replace your battery and let us know if that fixes it.

a mechanic is going to look at it on saturday... we can only wait