Hello Nesler,
You are asking good questions.
You write that you don't want to read long books. I can see your point, I have been there myself.
But there is a book which could help you, it might be interesting enough and speak to your current state well enough that you may really get a lot of help from it. There is quite a dramatic story in it.
"In Search of the Miraculous" by P.D.Ouspensky.
One very important idea, written about in this book, is that I am many 'I's, many different desires, intentions, characters, but to begin going against this I need to try to >observe< my self, my manifestations, my thoughts, my feelings. I need to see how I am not not unified, not >one<.
There are simple, practical things you can do that can help you gain more attention, that can help you begin.
At the beginning of the day, set yourself a simple goal(examples below), and then just notice how it goes. At the end of the day, review how it went. Do not judge or berate yourself for forgetting - just observe.
Some simple daily exercise goals:
~ use your non-dominant hand to open doors.
~ put your attention on the sensation of the sole of your left foot - the pressure of it on the ground, within your shoe, sock, bare, whatever.
~ notice your posture - put your attention on your spine.
~ notice the tensions in your body - take a minute to try to relax.
Also, you might benefit from taking an class in Tai Chi.
Good luck.