In other words, you were more of a libertarian when you were young, but then you grew up.
No, I was never full libertarian. I believed in a strong defense, I believed in roads, parks and national forest, etc., funding of public schools and higher education, even the USPS, AND environmental regulation of business and industry (because pollutants are an external cost not considered by the market). So, though some early computerized politics test of the day put me close to Libertarian, I was clearly not. There never really was a party related candidate that believed as I did, to my knowledge. I never, ever, considered voting for a Libertarian candidate.
I still like the ideas and theory and philosophy of governance via consent, and that I retain all rights not socially contracted away to the government, in my personal life and ordinary consumer financial dealings. I also like the idea of a free market for consumer goods and services (generally speaking, and as long as the pollutants caused by their production is regulated. Therefore, there is a bit of a problem considering China pretty much makes everything now), but believe that major portions of the market no longer function. particularly health care, education, some forms of transportation, and it seems, the financial markets and investment markets. In urban areas, housing also seems an issue. And perhaps basic access to reasonable food and water. Not that the financial and investment markets need price controls, but some form of regulation. Also, I am greatly against the privatization of government functions such as parks and federal land (again), incarceration, courts, war and war production, security, libraries and information, communication, education, you get the idea. Clear as mud, right?
Also, I never, ever read Ayn Rand. Milton Friedman, yes. (econ classes in the 80's. Also, Keynes.) Ayn Rand, no.
And I never really adopted the full libertarian philosophy. Mine was more related to John Locke, "Father of Liberalism". I considered myself at the time more Classically Liberal, as opposed to Socially Liberal.
I have since drifted further toward Social Liberalism, particularly in certain areas where I could be called a socialist. See above. Especially in certain areas of the market, as opposed to where Classical Liberalism drew on Adam Smith and the invisible hand. I came to believe that it didn't work in areas as I outlined above, and more recently that unfettered capitalism's over emphasis on the quarterly reports for stockholders, rather than focus on the long run best interest of companies and individuals calls the market's expected success into question. But not in all areas and in all markets or things. Certain markets function pretty well, and we should have freedom there. "The needs of the many outweigh the needs of the few, or the one." said Spock. But not in all areas. It is not nearly black and white.