You know - the worst thing you can do is mess up and there is generally a do-over.
1. Winding the bobbin: Do you have all the components? empty bobbin, thread, sewing machine manual, machine plugged in.... Follow the instructions to the T and you should be fine.
2. Load the bobbin in the machine. Again, follow the instructions. Is it a drop-in or a shuttle that sits below? If it is a shuttle, you will feel it kind of snap into place. If it isn't seated properly, try again.
3. Thread the machine and pull up the bobbin thread.
4. Select a straight stitch and sew. I start with some scrap pieces just to see how everything works.
You will do fine. Don't worry about how much time it takes. That varies as you get more familiar with the machine. It also depends on the pattern, and the mood, and for me what's on TV.....
Just enjoy the process.