Whaddya mean "don't let you go back"? ;-D It doesn't work that way. You go back until you've overcome any need (or desire) to go back.

The tricky thing about reincarnation, as far as I understand it, is this: you don't necessarily come back as what you want...you come back is what you need! The Rolling Stones had it right on that. You need lessons that will enable you to learn something.

Watch the movie "Groundhog Day" for a spectacularly clever and amusing demonstration of how reincarnation works....only speeded up and compressed into a succession of single days rather than whole lifetimes! The weatherman guy ("Phil Connors") tried every greedy, dumb, selfish, and immature thing possible, he even tried destroying himself multiple times, until he finally got the message: To master life, you must learn to love, to give love without expectation of getting anything in return, and to give it freely and generously to everyone. If you manage to do that, you will have accomplished all that you really came here to do, and you'll be free...and very happy.

That was what Jesus taught too. And Buddha. And Lao-Tse. It's a universal teaching. Cynics laugh or sneer at such teachings...and they come back again and again, like Phil Connors, until they finally admit defeat and open their hearts to something greater than their own little personal god, their ego.

The above was not a rant. I'm quite calm. ;-D