Well, i've always been libertarian at heart, and was a right-wing libertarian when I was a teenager, having moved to the left as I got older and entered the working world. And really, I don't think my goals ever changed so much as my perspective on the part capitalism has to play. At this point I think capitalism is unsustainable. I think that it is a leftover of aristocracy that had the benefit of allowing us to move out of traditional societies without changing too quickly, but in the 21st century it is going to be faced with Global Warming, Automation, and the ballooning wealth disparity between classes, and I don't think it can survive all three at the same time. 

Regarding the far left, to keep it simple, I agree with some points and not with others. I don't think history follows any predictable pattern, and I don't think any one thing is inevitable. I said above that I don't think Capitalism as we know it can survive the century, but that doesn't mean I think any one thing will inevitably replace it. At the same time, I think that the Marxist end goal is a lot more plausible than people think, and the problem with communism isn't the possibility of the destination so much the complexity of reaching it.