My name is Julien Castel, I work as an e-commerce manager for a top-range lingerie website called Dessus Dessous.
We have been using Magento for 7 years now, recently migrated to M2 in 2020.
Unfortunately, we regularly face tech and marketing issues with it, and hopefully, we will find solutions thanks to you guys 🙏
Welcome to the community forums!
The best way to start is to ask and try to help other into the forums so you are in the right path.
As you can imagine, you'll find information on StackExchange too and you can start diving into the https://devdocs.magento.com/ not only for learning but to correct and improve the docs.
We can't forget the powerful User Guide: https://docs.magento.com/user-guide/getting-started.html.
Another recomendation could be to be aware of Magento issues on Github: https://github.com/magento/magento2/issues (if you are technical, of course).
Also, you should read this post: https://community.magento.com/t5/Welcome-to-the-Magento-Community/Start-here-and-hello-from-me/m-p/5... (in particular the guidelines) and if you are not sure about how to use the forum you can read the FAQ: https://community.magento.com/t5/help/faqpage.
If you need information related with GDPR, you should check this: https://community.magento.com/t5/help/faqpage/title/gdpr
In case you need
Finally, you'll need to get your hands dirty with the platform.