The winger was brilliant at the start of the season, scoring five goals up until September.
Ojo's form has dovetailed since then, but that hasn't dented the Englishman's confidence.
"I just try to block everything out," Ojo said of the criticism.
"It's very difficult to go through a game and not make a mistake, especially as an attacking player.
"You're in the team to make things happen and there will be times when you lose the ball or have a shot blocked.
"The main thing for players like me is to keep believing and keep focusing on affecting the game as much as I can.
"I've developed already in my time at this club. Mentally more than anything. Having a strong mentality is massive in football.
"There are players out there who are really good technically but are not so good mentally and it doesn't work out for them.
"If you have the right mentality then anything is possible. I'm hungry and I want to get on the ball and make things happen.
"I feel the manager and fans can feel that. I'll keep working as we have a lot of big games coming up and you need to be ready.
"It has gone well for me so far up in Glasgow but I'm always striving for more. I want to score more goals and provide more assists."