I have sewn off and on most of my life, but I learned how to sew in a Home Economics class in the early 70's in Junior High School. You are probably from the generation that did not receive this extra curricular?
My basic recommends:
Watch that tutorial video about 3x...and pay very close attention to how the bobbin is thread and how your machine is threaded. Than practice those 2 skills - a lot. When you're working on a project, and the thread breaks, you need to be confident in your re-threading technique, otherwise, if you have to stop and look at a video or read the instruction book...you will lose speed and ultimately interest. I can thread my machine with my eyes closed.
Go purchase different weight fabrics from the sale bin....like thin cottons, thick cottons. Did you machine come with different size needles? You might want to pick up a set of needles.
Practice, practice, practice on your machine sewing just straight and zig-zag lines back and forth so you become accustomed to the speed of your pedal and the stitch length as you guide and pull the fabric through.
Have fun with this...go fast, go slow. Change the stitch width and length so you can visualize how it all looks and feels.
Very important tip - use only high quality thread...don't buy cheap thread out of a sale bin, it will gunk up your machine. Ask the store clerk for the best. Believe me, it is worth the pennies.
Choosing a project.....Yikes....that should be fun. I would recommend pillows or curtains first. Something with straight edges. Don't do zippers or button holes quite yet. Even though those are 'automated'...they also need practice before committing to a project that needs to look finished or one that you want to wear.
Depending up your time and interest you can find sewing groups at churches, quilt shops, fabric stores, craft stores and on-line too. I joined one years ago in TX and would pack up my machine and go sew with the ladies 1xweek. I learned more about men in that group than sewing I think.....one gal was a whiz on her machine. I learned a lot of fantastic tips from her and sage advice from the others. Those were the days before the internet.