The Scot was just 40 minutes into his Hull debut following his £8million summer switch from Norwich City when he broke down.
He told the Daily Record: "The physios have said how good the mentality is because they've seen lads in dark places. I don't really want to be there.
"With that side of things thankfully I'm quite a bubbly character to be round about. You get into the physios and the changing rooms and the banter is good.
"But you see stories, the likes of Tony Adams, Paul Merson. At the time fans probably didn't think they were going through that.
"It's not until after, so that's why they've got the psychologists involved which is good, especially for young lads coming through and dealing with the pressure.
"It's been really hard, especially when you've got family and such. It affects everything. Anyone living with a footballer will tell you it's difficult because one thing can send you over the edge.
"Down there they've got a lot of psychologists which is really good because you can speak to people and talk to them."
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