Como comunicar las oraciones que siguen

I hope I translated that right. Hello I havenbut been on in a while but I want to know how to state the following in Spanish.

My car is broken

My computer keeps freezing up.

Get away from me/here/there

My Spanish is rusty.

I passed / flunked my quiz ( with an A/B/C ect)

This was typed on my tablet so plz excuse any errors IR things I missed

Please offer your own try and we can help you correct your sentences. We can't translate for you.