It is definately possible to learn two languages at once. You just need to devide your time between them.

But personally I think that it's easier if you learning those languages at different lavels (for example, I'm probably intermediate in Spanosh, but beginner in Korean, and I'm planning to wait till I reach at least intermediate level in Korean before learning the next language). The other think that help is learning languages that are very different. For example, learning English and German at the same time might be more diffucult, because they are similar. There are a lot of similar words and it's easy to confuse them. But German and Italian should be fine. 

Good luck with your studies!

Thanks Ola, good luck to u too :)

It's the same happens to me,

i am trying to learn russian (as hobby) but at the same time i learn english because as you know is the language "intermadiate" in all the languages,probably someone who i am talking with, know english instead of my mother tongue,  and i should be able to communicate me.

It's hard for me to learn 2 languages at once. I tried to learn Japanese when I learning English. I found it's hard to do so. I think perhaps we can learning one language first, when it comes to a relevant good level, then start to learn the other.

I started to learn german during learning of my english. But It took long time. The best way to learn a language is to be surrounded by that language. I think It's strange to be surrounded by two languages.