Context: I'm creating a website from scratch, using no plugins aside from jQuery, trying to get comfortable with the basics of how things are done. My website has content that should be managed through a small database ( i think at least ). For you to get an idea, it will have a homepage with news, a portfolio and a submission form for redirecting e-mails to my inbox.
Problem: I've been trying to read about some possibilities for database integration, but it's a vast world, I'm currently trying to learn PHP using phpMyAdmin and WAMP and running a few tests with a simple .php file, but it seems a bit unstable, sometimes queries work, sometimes they don't (maybe i'm still a newbie).
Question: If you had to pick a DBMS for a case like this, what would you go for and why? I'm looking for something simple to set up and access.