Sharp before anything
Most beginner problems disappear when the edge does its job.
A video shows you a joint that already worked. It can't see why yours has a gap on one side.
Beginners usually blame their tools, and are usually half right: dull edges and an unflat bench make everything harder. We fix those first because they quietly ruin every project that follows.
After that it's project sequencing. Skills stack, and jumping to a dovetailed chest of drawers before you can mill stock square produces frustration rather than furniture.
Photos of your joints tell us far more than any description. That's why every program is built on sending work in and getting specific corrections back.
Most beginner problems disappear when the edge does its job.
Good furniture comes out of small garages all the time.
Photos of the work beat any description of what went wrong.
Twenty minutes, free, on your space, your tools and a realistic first project.