Of course you can! if you like it you will speak naturally and feel comfortable speaking that language ( or those languages) , you will also start to think in that language. It will be funny changing languages so often.

Yes, you can learn a second language and you can sound like a native in that second language. It all depends how important it is for you to get the right pronunciation. I find that most people are simply happy at mastering the language and don't mind that they have an accent, and so they don't even bother to sound like a native. But it is possible, if that is what you want to achieve.

I do not agree. I met many peoplke who learnt another language as an adult and they spoke like a native. No accent at all. One of them was an american, When he told me that he stayed in Germany only for 3 years and that he was american and that, didn't study german before arriving here... i was really stunned. He spoke like a native, 100%. I know a french guy who lost his accent completely, a german women who speaks indonesian like a native (learnt it as an adult as well).. there are many examples.

You can learn to speak another language but your own accent will always stay with you.

it doesn't matter how much you practice.practice for 1 hour but do it regularly not suspending it.because practicing regularly precludes you from forgetting it utterly.and by the way you don't have to speak like a native.you just need to believe that you are like a native.I mean you need to believe in yourself that you can do it like Elites.trust me pal you will see the result as you wish to.