Can anyone explain this to me???

Hi I changed the starter on an omega b 2.0 8v today because he didn’t give much more of himself (car runs with push) the car was still driven into my garage without problems 1. Betterie clamped down 2. cable on the starter unscrewed 3. let’s go screwed up 4.new starter wired 5 firmly screwed 6.battery clamped and start!!!!! car does not jump on turns just as if he had no compression timing belt is trying to turn on marking does not work you can’t turn off the starter vll lies yes because of the nööö auto on the hook and attract nööö it block only the rear tyres when a passage is in there can one explain to me times ??