Probably asked a lot but is now still a good time to invest? even 0.1 BTC ?
No IMO, due to the rapid and unpredictable price changes that have been happening during this year. However, if you do decide to do it, remember that it doesn't matter how much BTC you're buying, it matters what the value of that BTC is.
What happened to BTC-E? years ago i traded on here with coins, so glad i took them out before
After being seized by the US government, they reopened and reimbursed 55% of their users' funds. They are still going but it would be a huge risk to try trading on there due to the possibility of them being seized again.
Has anyone lost BTC or had some stolen? i lost about 12 BTC back in 2012, nothing really then but now it would be life changing for me
No, not personally. It's very surprisingly common though.