Besides reading on your own; you can attend a basic digital photography course.
Can join those in the CC if you on tight budget.
I am still learning but this is what I have done.
Play with the different manual modes like aperture, shutter speed (and ISO if your camera has those features) one at a time. Change from one end to the other end to see the effects (on same object). Need to observe the environment lighting conditions together with the analysis of the pictures taken.
Save the pics in a PC and then put it up is a file side by side comparing the conditions and results. Much easier to pick up the differences and also faster.
This is then followed for full manual (deciding what combinations of aperture and shutter speed to use for the intended target object).
PS. When using full manual mode, can also a full auto picture immediately after the full
manual. Again compare the settings and the results.Try to understand why the
difference. Each time set a target that your setting to be the same as the auto
setting.
After that you can do the fine tuning features to whatever you desire (want it sharper,
more contrasts, hue etc...)
What I have learnt from the seniors here, bags is a very personal thing just like dresses for ladies. Suggest to go thru the bags section in this forum - look at the pics and the prices, comments and recommendations before going to the shops and have a good feel yourself.
You need to decide how many things you want to put into the bag ie.
camera body, + how many lens + flash + batteries, memory cards and for some even a tripod. If you can afford you can buy different bags for different combinations.
Also do you want people to know or do not want people to know you are carrying a camera?
This can also affect the choice of bag.
Sometimes you want to have a very quick shot. The PNS(assume FM2 is) comes in very handy. Also there may be certain situation a bigger camera(dslr) is not very appropriate.
It's all up to you.
If you really find no use of it you can sell it off thru buy and sell here or to some second hand camera shops. There are also people who give up the dslr after a while.
Hope it helps and enjoy your new camera.