There is no "good" or "bad" way of playing this game. Play how you like and have fun doing so.
Don't put ANYMORE skill points in attack and defense, it's completely worthless. Put it all in energy for now. You'd want to join an active syndicate, and avoid LTQ's as much as possible, only do the SLTQ's. Don't avoid epic boss like some say. Sure it's a lot of exp but it's worth the stat boosts and mods. And IPH wise, never not be upgrading anything. Even if it's laundromats.
Good luck!