Key will not turn when inserted into the ignition. on 1998 Toyota Camry

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Im having problems with the key. I think i need to purchase a new Key cylinder but i wanna make sure. The key will not turn to the acc. position i have tried moving steering wheel, putting vechile on neutral but the key hessitates. After soo many tries it eventually turns. Should i try spraying WD40? or replace the key cylinder. How much does a key cylinder cost and where can i get one.
(1) Answer
Terrible, I had the same problem and I had no choice but to get a new ignition and starter installed. Glad I did now I don't have to worry anymore if my car will start or not. The cost was just over $400 for both installed. I own a '98 4cyl camry.