Esperanto is based on several European languages. If you already know a few European languages, it's easy to learn, but I don't think it will help you to learn those languages. Also, it's spoken by very few people today. There will be a lot more resources on the web for "real" languages.
And I found it can confuse the brain if you are trying to learn two languages at the same time. It's ok to start with a second language when the first language you are learning has already "settled" (after a year or so), but if both are fresh, it can be difficult.
Finally, don't underestimate the effort in learning a language. There's a LOT vocabulary to learn.
So I'd advise against it.