It is important to progress slowly one step at a time though we all want it now without the effort so it is very easy to get frustrated which will take away your concentration. Try first really slowly to master a clean picked run, pay attention to precession of the notes picked.
Even if it is very slow that is fine. It is simply one step at a time, but those steps should be dealt with properly.
When slowly you are sure then take the speed up just a notch and try the run again but the same rules will apply practice until it is right and only then move on to the next speed level. If you falter you will have to go back to the first speed and progress through the levels again.
Do Your Research
This is the fun part of improving. In order to grow as a good all round player, even though you may have a favourite genre or style you frequently want to play, it's great to try and great a lot of different musical influences around you. So try and get to small gigs or jam sessions so you see many different players. And get fresh a outlook on your playing.
This will give you new ideas and you will see how people approach their playing in different ways. You may be familiar with 12 bar blues but everyone has their own different slant towards the way it is played.
Jamming with people will force you to improve you ear for keys and pitch etc and you will be playing ideas which very often will be original and inventive. Jamming helps to try and be interesting and push's your ability to greater improvement.
Practice is best on a consistent regular basis ideally at least once a day of organised guitar playing. Improvement will be speeded up with directional, structured best practicing techniques. Try and break down your playing into sections which might include for example warm up exercises, basic scales, simple chords, ear training and tuning methods. Add to this list as your playing improves and grows.
There are several ways you can tune a guitar to standard concert pitch or 440Hz tuning. For example pitch pipes will have six pipes tuned for the low E 6th string, A 5th string, D 4th string, G 3rd string, B 2nd string and high E 1st string. So you simply blow a chosen note then tune the right open string to the note and tune to the note. The advantage of this is you do not need to rely on batteries and it helps develope your ear for perfect pitch as you are tuning to audio as opposed to visual.
Electronic tuners are great for speed and accurate tuning. Because they give a visual and audio signal there are excellent for example at live gigs where because of the rest of the band and volume levels you would not be able to tune up so easily. Some tuners can even detect which string is being chosen to tune automatically.
Tuning yourself by ear is a must if you want to play and learn guitar. A guitar due to it being very sensitive to heat and humidity will often go out of tune and if you are relying permanently on devices for tuning help this is never a good idea. Self tuning a guitar is faster, more convenient, and builds confidence as your tuning ear developes.