It doesn't sound like it's sunk in yet mate. Start catching those buses and revisit the idea in a couple of years. You will feel differently then. Don't be an idiot and drive anyway cos you will get locked up next time. There are plenty of people out there who choose not to drive ever, just think of yourself as one of those. Get a bike, get fit. Get a new life cos your old one wasn't doing you much good by the sound of it.