[Nagareboshi]

I don't think it's necessary to be using "kudasai", it sounds really repetitive.

Here's my version:

Daiji na koto wo mamotte, akiramenaide, nigenai.
Jibun wo shinjite, tomodachi wo shinjiru.
Itsumo hokoritakai ikiru

I had trouble with the last sentence as well, so I'm not sure how correct it is.