Mohammed, Diane has given you a lot of good information.
I thought I would share with you my current practice lesson
1. Hand stretching exercise. (I do this while preparing my morning coffee and usually under warm/hot water.)
2. 15 minutes work on scales,modes and arpeggios, those needed for my core material.I use a timer. for all my practice, if I take a break I stop the timer. Once I learn the material I will use a metronome to improve, it’s not my favorite tool and if I don’t have a fairly good “handle” on what I am playing the metronome doesn’t help.
3. 15 to 30 minutes on my “Core Material”. This practice period my core Material is Autumn leaves melody 5 th position, (jazz standards) Sundance, 5th position. (Mel bay) 12 bar blues solo 5th position, (activemelody on-line) This particular practice routine can last months.(I usually work on more than one thing to keep my sessions interesting and to avoid fretting hand fatigue.
4. 15 minutes chord melody chords for Autumn Leaves, barre chords and other chords used in the 12 bar blues solo sheet music.
5, 15 minutes working on a solo for Autumn Leaves. I am using scales and arpeggios I worked on in the first fifteen minutes of practice.plus, I also searched the internet for material for Autumn leaves done by better players and found two etudes and one solo to help me create my own solo.
6. Have a lesson plan with all the material organized. so you aren’t wasting time looking for chords or patterns. Have a major scale worksheet and a fretboard worksheet. I keep all the material in a folder.
7. in the evening I usually spend a little time reading music theory pertaining to my lesson and listening to the song I am trying to learn.
Beginners have it easy. The material is already prepared in their guitar course. A private teacher will also have lesson plans ready to go.
My “Guitar Goal” is learning to play the blues,
“ if you sound good, you're probably not practicing.” unknown