what people fail to realize about the grind is by playing update to update you have only a few things to accomplish so the grind is worse. if you start from the beginning the grind is better cause you have so many things to do making a daily pitstop to the diner for money and charm stats is far better than needing to grind that stat for one achievement you are trying to work on. I would say the key to most of GDS' games are work on as many storylines at a time as you can