Which language should I continue to study?

Hello, I'm in college and I'm currently studying Spanish and French right now. I'm a foreign language major, and these two languages were originally supposed to be side projects until I transferred schools. Well, it turns out that I want to continue studying them, but I can only continue studying one of them when I transfer (because studying 3-4 languages at the same time is a bit much for me). When I transfer, I'll be studying Japanese (I also had plans to study Modern Greek but it turns out that the college I'm transferring to no longer offers it).

I am American, so most people would say I should continue to study Spanish. While that sounds the most logical, I'm also having a really fun time learning French and I am looking for ways to apply that to my career later on in life (I want to open my own book publishing company that focuses on translating/publishing manga, although realistically I'll probably only be able to work for a publisher because I don't see myself having the money to start my own publishing house lol). Of course, I'm having a lot of fun learning Spanish, too. I'm also picking it up a lot more well than French, so maybe I should go on to learn Spanish, but I don't want to give up on French either.

I feel really stuck right now with this decision, and I should have a decision by the middle of next month when fall registration opens up for the college I'm transferring to (I have a meeting with my advisor who is going to help me set up my schedule for the fall semester).