Having to grind through 400+ levels every time you prestige reset is brutal. You should be able to jump to the highest level you defeated and get all of the cumulative prestige.
Don't Follow Me has 600 areas. Who is going to attempt that, it would take all day. There really needs to be a sell items option in the shop. With some items costing more than 6,000,000 how is anyone supposed to accumulate that much without selling items.