In a sense when using the database manager in Bubble you have got a lot of the basics covered. However Bubble does use its own terminology and does hide certain advanced features in a really nice way especially when it comes to relationships.
When using a shared web host setting up a database is relatively easy (to setup and to manage). There are more things to think about than just using bubble but its not going to take you much longer than a couple of hours to figure out the basics, plus once you know it you have transferable skills. I think @Hyperbytes goes into the creation of the DB through cPanel and then editing it with various GUI tools in his webinar series (thank you so much for those videos!) I recommend viewing that webinar series to begin with just so you can get to grips with how things work in the first instance.