Five years is probably way more than you need! Also for a lot of programming there's not really a "certification" that you can get - think more in terms of a portfolio of work and projects. Anyway, if you work hard you can probably get to "employable" within a year or two (depending on your local market), and then you can learn tons more on the job.
Mostly you just need to get started and go for it!
For a first language, Python and Ruby are relatively easy-to-learn languages that are used in real life projects. Ruby and Python use more English words and less weird abbreviations and brackets than a lot of other commonly-used languages. Anything you're going to need to do in your first year of coding you can do in Ruby or Python.
There are some good intro classes on edx, Coursera, etc. <a href="
https://www.edx.org/course/introduction-computer-science-mitx-6-00-1x-9">Introduction to Computer Science and Programming Using Python</a> from MIT is a good one but it runs in defined sessions and doesn't seem to start again until January. I'm sure there are lots of other good ones out there.
If books are more your style, that's a great way to go too; when I was starting out I learned a lot from the book
Learn to Code (Using Ruby) by Chris Pine; it's kind of out of date now (the language has changed) but it might still be a good one to try.
Is there some kind of web app you would like to build? Web development is an easy way to get started that still requires real coding. The <a href="
https://www.railstutorial.org/">Hartl Rails Tutorial</a> guides you through building an app in Ruby on Rails, and you don't really need much coding experience to get started, although I think it's better to focus on fundamentals first. (Ruby is the programming language, Rails is the framework; ideally it's good to have a background in an actual language before you start messing with frameworks but it's not actually necessary.) I'm a Ruby on Rails developer, so these are the resources I know, but I don't actually think Ruby is a better language than any other.
I'm guessing from your username and your other posts that you might be a woman; if so, check to see if there are any
Railsbridge events in your area - they're in-person workshops (with free childcare and pizza, too!) for women who are brand-new to coding.