Hi, my Subaru Outback 2005 2.5l , is showing Check engine and cruize light for like 2weeks now even after oxygen sensor was recommended and was changed. before those light came on, I noticed these vibrations when driving, I need a guide

You could bring it into the dealer and ask for the next recommendation and determine if it's something you want to address or not

Time for a new car. It'll have a warranty, older cars will nickel and dime you. Thinking you are saving by not having a car payment turns into more money spent on repairs here and there

Take your car to AutoZone or Advance Auto Parts. They can run a diagnostic on your car for free and tell you what is wrong.