Please do not get overwhelmed with the sheer amount of information here, you should try to use this site as a reference point. Go through the training andecide on a project you are going to take on. Whether that is developing a product or building an authority site.
The important thing is to take action, don’t spend your life learning, use this information to come back to when you need help with something.
And don’t forget, I am always here for help and advice.