I want to learn stocks & stuff. Where to start?

Hi! I’m a government employee & I’ve been looking around for some sideline/side gig na pwedeng gawin after work hours & during weekends na hindi naman lalamunin yung extra time ko bc I have a kid. Hindi ganun kalakihan ang sahod ko but my partner does have a high salary & we’re planning on using his money to get into investing. So far, the plausible idea I have is going into the stock market. Part time, of course. So in that sense, does anyone here know a trusted online training or webinar I can take para lang mafamiliarize ako kahit sa basics of trading lang muna? I see a lot of terms kasi na hindi ko maintindihan & I’m a traditional learner, need ko ng tutor or teacher.

Any answer would be a great help!