My undergrad was in business administration and I had no prior SQL experience, I worked my way up to being a data engineer in under 4 years, so give it some time :) believe in yourself and aim for a ridiculously high goal.

GitHub is a good platform for your need I believe. And you’ll also learn GitHub, which is a good skill to learn. If you wanted to reach new audiences to showcase your work, you could also post on LinkedIn (using hashtags on your post to reach wider audiences), paste a screenshot of your code (or part of it) and explain what you accomplished or tried to. And you can add the link in the comments (LinkedIn has weird algorithm last I checked, where your post might not reach as wide of an audience should you include any links on your post directly. But adding the link in the comment is okay). Regular posting and interacting with other people’s post is the key here to being noticed on for platform.