I've been playing for almost a year and haven't made any kind of progress because it is so painfully slow and thats because every single thing is so expensive. If you need enough energy to move up the only way is to buy it. The rewards are a joke, Wooga does another game called Junes Journey that is so much more fun, gives great rewards and does so often if you do the tasks and the work. I've moved up two levels in one day with that game. I will stick with it.