1995 Honda Civic Valve knocking and oil burning

I got my car about 16 months ago, it had 130k miles on it. The previous owner said the timing belt and the water pump replaced. The car was in decent condition, until the first oil change. The car started to burn oil (1qt / 500 miles) and blue/gray smoke comes out the muffler. Now, and for a month now, I start hearing knocking coming out the engine( I think the valve?) When car is WARM and low RPM. I tried LUCAS oil, but didn’t help.
What is the best most affordable fix I can do to keep the car running for a year until I graduate and afford to buy another car?
I appreciate your help