Good old graywolf's guide to learning to print in the darkroom
1. Go to a museum or gallery and look at some good prints.
No matter how good the prints in a book look, they are nothing like a real wet print. So, even before you decide to actually do it, go out and find out what you are thinking of making. Most of us have never seen a truly good wet print.
2. Forget about dodging and burning until you can make a good work print. A work print is a straight print that you use to decide what you have to do to make a finished print. Until you can make a perfectly exposed work print, all that other stuff is gilding a hog.
3. 5x7 paper is your best friend. It is cheap. It is big enough to see the image clearly. It is easy to handle. It is what you need to learn the craft of photography.
If you do those three things, I would guess, the average person will be pulling good work prints after about ten one-hour sessions. One-hour sessions, because the prints have to dry before you examine them critically, so there is no use making a lot of prints without taking the time to look at what you are doing. Also because most of us learn better if we do not over do it. And it is easier to maintain a high level of interest if we do not over do it.
OK, back to the lessons:
4. Examine the work print you want to make a fine print from.
Take a grease pencil and mark the areas that are too dark. Those are the areas you want to dodge. In learning it is probably best to make a new work print with just the dodging done, with experience you will most likely wind up dodging and burning in the same session.
5. Take your work print and mark the areas that are too light.
Those are the areas you want to burn in. Once again I suggest at first do as separate work print with just the burning in to learn this skill.
6. Now, do a print with both the dodging and burning.
At this point you have about 20 printing sessions under your belt, and you will be producing prints that expert printers will take seriously. You will begin to get little tips on how to subtly improve your prints. You will also know by then whether you love or hate those short sessions in the darkroom.
Fine photography is a craft. Just like any other craft, say fine woodworking, it takes practice and instruction. If you are the type that wants to improve, you will improve bit by bit over the long term until you may truly be called a master printer.
Don't become discouraged, remember in the trades it takes an apprentice four years to become a jouneyman, and and jouneyman two to four more years to become a master. Of course they are also putting in four or five days of labor for each day of training, so you will progress faster than that doing it as a hobby.
And remember, hobbies are supposed to be enjoyable, if you are not enjoying it, go find a hobby that you do enjoy.