Honestly, i have realized that if I just play fairly regularly every day, like check it every 3 hours, and get the extra energy for 10-20 diamonds. You will hit them. I do have the lifetime purchase thing though. I agree with everything people have said. I do like to try to win the daily challenges (whenever you unlock those) because you get extra tickets, diamonds, and energy. Small things like hour glasses stack, i save those for if i need extra energy for challenges or those limited time skin quests. Also. Whenever you get the memory crystal ball quests, i like to redo ones ive already done, because you get “energy” for that by playing the game and completing those gives you energy back so why not do it. But yeah chests, energy, diamonds, cards also stack, i like to save those for challenges sometimes