Wow. English+Hindi+French+Russian+Tamil+.... So cool. You should probably add some Arabic, some Chinese, some Xhosa, some Gaelic and some native American languages to this list to appear endlessly awesome :-)
Edit - I think I am done. I want to learn Spanish since it will be useful locally, but my brain can not take any more confusion. When you do not use these regularly, but have a faint notion of many many words, the brain does get confused on a regular basis. And I was not trying to brag, expressing helplessness.
Of course I only have exposure to my indian friends who moved to Australia for work, so they're biased towards people who went through university and learned English in school.
People I know that know more languages than me seem to be worse at all of them.. and by worse I mean they can hold a fluent conversation, but have extremely poor spelling and grammar.