What kind of training is needed to become a time traveler?

Answer 1

1.) You need to be a polyglot.
2.) You must have a keen and detailed understanding of History.
3.) You must know how to avoid dinosaurs and other, large, predatory beasts.
4.) Speaking of which: have a good tax man. Because the IRS will be hot on your trail.

Answer 2

you must

1) Be Insane
2) Have a bib for your drool
3) need to be able to sleep for a really long time

Answer 3

Get a lobotomy. Beyond that, you seem to be all set.