The sequence will depend on who you ask. On this list you will get a wide range of methods, so I guess I would tell you to pick one source for your info. That way you won't be trying to combine steps or materials that don't work together.

Two things scare me on your list:

Before I prime, I always treat with metal prep to stop any microscopic rusting that may have already started. The only acceptable alternative for me would be "self-etching" primer. This way you absolutely know that a year from now you won't see any rusting causing bubbled paint.

Also, I would never use bondo over anything but bare metal, unless the manufacturer advises that it's okay. The only thing I will personally use on top of paint is a two-part glaze that is designed for that purpose. You also use it after you've sanded the primer, to correct imperfections, but you'll have to seal those areas before paint.

I would add one more stage to the end of you list:

After your paint has dried, plan on sanding with very fine paper, then buffing. Unless it's a "rat bike", you probably won't get the kind of finish you really want, without doing this.

When you encounter problems...and you will.....just decide how to correct it, keep going, and learn from your mistakes. Each job will get a little better. I've been painting for 40 years, and I still have occasional problems, and still learn new things.