If you are very (or fairly) new to Photoshop, here is a suggested order of courses to watch. I suggest starting with the Photoshop for Beginners Course and then follow in order each of the next courses and tutorials .
At any time if you are looking for help on a specific topic, you can use the category menu or the Search box to find a tutorial on a specific topic.
If you are not a member of the site, each course will be priced individually - as a member all of these courses are included in your subscription.
Don't forget that twice a month I hold live "Office Hours" where you can ask questions and I answer them live. These sessions are also recorded and appear in your available courses. (Timecodes indicate what topics are covered in each recorded broadcast).