Set some time aside to see what courses are available.
Take advantage of any free lessons, watch the introductions to their classes and see if the instructor will be a good fit for your skill level and speed.

Watching online tutorial videos can become addictive. Keep in mind that you are trying to learn something, not get distracted.

Once you've learned a new skill, try it out for yourself. You will make mistakes. When you do, review your notes and keep going.

Once you've learned something, review it regularly to make sure you don't forget it.

Have an end goal in mind when you're learning.

Find out the ideal time you can dedicate to learning, and also resting.
Don't try to push yourself and to fill your mind with too much information in one session. Try to learn over multiple days to let the information sink in.