This is a great question to ask, and a lot of other people have the same issue. Unfortunately, there are 2 problems that get in the way of giving you the answer you want.
Stack Exchange sites are for questions with answers. And, though it may not seem like it at first, how to get started learning something doesn't really have one. It has many, many possible answers and no way to know which one is best.
Stack Exchange technical sites tend to have a certain minimum requirement for level of expertise, which you probably don't meet (check the specific FAQ to see). Maybe you can come up with questions that are good enough, but you would probably do better to use Google or reference texts first.
A lot of the sites do have answers for canonical texts for learning certain topics, so you might search those. There may be "things every " (practitioner of technology X) "should know" questions as well. You may be able to get someone to talk to you on chat who wants to be generous with his time. And once you get started, you can ask questions (or more likely find questions asked before) that do qualify.
Also, there are plenty of resources outside Stack Exchange. The textbooks used in college courses are easily found, there are free on-line courses on a huge number of topics, on-line documentation, actual books, etc. Technical fields tend to involve a lot of self-directed research anyway, so learning to do that is not as much of an obstacle and waste of time as it might seem.