London 2012 Olympics: Dwain Chambers using psychiatrist to come to terms with eligibility Chambers said one of his biggest challenges was getting into the right frame of mind to compete against the world's best sprinters, having been restricted to running against lesser opposition in second-tier races since his return to athletics in 2008. "In order to beat the best you've got to compete against the best in the world and those opportunities weren't available to me," he said. Now that they are, I've automatically got to get myself into a different mindset. I'm going to be going up against runners who are effectively sub-9.8 runners and I haven't been in that calibre for a long time. I have all the capabilities. I just need to get my mind sharper and my movements quicker. The Londoner said he still found it difficult to believe that he was eligible to compete in the Olympics and admitted the experience of the past few months had been mentally draining. When the Court of Arbitration for Sport ruled that the BOA ban was unlawful at the end of last month, he was so overwhelmed that he left his training base in Jamaica and spent a week in hiding on a neighbouring island. "A lot of people said, "You must be over the moon at the decision," but, honestly, I was exhausted," he said. This is a road that we've been travelling for nine years and I didn't know what emotions I would be going through. It still hasn't sunk in yet. For something that has taken nine years to become a reality, I can't expect it to be resolved in two weeks. Chambers flopped in his first 100 metres race of the season in Puerto Rico earlier this month when he clocked a pedestrian 10.52 sec, and though he performed better at the Powerade CityGames in Manchester on Sunday, he admits he was "scared" at what kind of reception he would receive from spectators. Indeed, he was so anxious that he went out onto the streets on the morning of the race just to "get a feel for people's reactions." His fears that some fans might turn against him proved unfounded, however, as the Manchester crowd gave him a warm reception. He hopes to receive similar support in the months ahead. "I'm still on a kind of roller coaster and I'm still trying to find my feet and get myself prepared for competitions that I never expected to be in," he said.