O'Hara, now 22, insists Lee's story can act as an inspiration for players released from Spurs or any top-flight club.
"A lot of lads can take heart from what he's done," O'Hara told the Spurs website.
"It can be difficult and I know myself, I've had some tough times. I went on loan to Millwall (in 2007) and wasn't really featuring but you have to believe in yourself and don't give up. You have to believe you are good enough to play.
"It's all about taking chances. My dad always said to me 'Jamie, you will get that chance and you have to be good enough to take it'. You have to do that in football because you don't get that many chances at the top level.
"Luckily, I got that chance and took it."