How should I split up language times? English-Spanish-Japanese. | Raising Children in More Than One Language | Forum

So, here's my situation.  I was raised bilingually for the first few years of my life in English and Spanish.  English dominated, however, and I didn't really use my Spanish until I was older.  Now my Spanish is definitely advanced, but I don't know as much as a native speaker.  My husband's first language was Spanish but his English is now much better than his Spanish.  I speak intermediate Japanese, also.

My husband wants to speak to our daughter in English and while he wants our daughter to speak Spanish as well, he thinks Japanese will be too much for her.  I want to convince him that if he speaks Spanish to her as well, it could be easier for her to learn all three, but since he thinks it'll overwhelm her, he doesn't agree.

Since he will be exclusively using English with her and we live in the United States, I think English will be her best language.  But we have family members who can speak to her in Spanish, and I was thinking about getting a Japanese speaking babysitter.

My problem is, I don't know how my Spanish/Japanese interaction with my daughter will be split up.  Should I speak Spanish for half of the day and Japanese the next half?  Although, my job takes out most morning hours, so I don't know how that should be split up, exactly.  Or, should I speak exclusively Japanese to her, and allow family members and a babysitter speak Spanish to her?

My real question is, how should I split up the Spanish and Japanese for my daughter to effectively learn both, where Japanese is definitely a minority language?  Out of those two, I'm very much more comfortable in Spanish.

Please help :) 

Hi there. I'm in a similar situation & here's what I do: French a.m., Spanish p.m., English when 'out' & interacting with the community. It's not a perfect system but it at least helps me organize my days linguistically. My daughter's 2 (28 mths) & is speaking all 3 languages now. I hope this helps! Good luck & stick with it.