Not a problem, don't try to be an expert on those things but have some knowledge enough to be able to talk about them. If anything you particularly enjoy then that may steer you to a particular area of programming. Good luck!

Get a github account start coding for yourself, being able to competently use git = great skill. While your there fix some bugs for other people, voat has bugs went not help them out, learn bug fixing, code review, and help the site whilst building a portfolio = win. Buy a raspberry pi set it up as a home headless webserver shows you have some knowledge of sysadmin, can navigate in bash, setup ssh tunnels, use it to make calls to an api, set up your own email address. I know businesses that look for that, fluffybunny69@gmail.com does not present your self well. Mrbigdick@bigdickenterprises.com would be far more impressive for any gender or possibly something more professional. Learn about test driven development, agile, lean, ux design, unit testing, last of all learn a programming language, there is a good chance after you get a job you will end up using a completely different language anyway.