Articulate has lots of tutorials and user guides. They're great for getting started and looking up basic information. You can find them here:
https://community.articulate.com/articles/tutorials-and-documentation
There are also many on-demand videos covering special topics:
https://training.articulate.com/webinars?category=storyline&_ga=2.52109545.1101356280.1643032362-1318227345.1636473796
You can use the weekly challenges as inspiration for what to build, or come up with your own projects to build. Then try to make it work. Check the above resources as needed.
If you get really stuck on a certain problem and can't find a solution in the Forum, start a new discussion to ask for help.
- Explain what you're trying to do, plus what is and isn't working.
- Troubleshooting is much easier when one can look at the .story file. It's also easier when that file only contains the slide(s) with the problem. And when all the objects have relevant names.
Best wishes for success!