Hello and Welcome! Gaining lucidity does vary from person to person and does depend on a few factors:

Motivation--being determined will help you succeed at becoming lucid since it means you won't give up easily.

Practice--writing down dreams, identifying dreamsigns, using RC's to help show lucidity, using other techniques.

Being observant and aware--Being able to critically anaylze your environment when awake is crucial to being able to 'know' you are dreaming when asleep. How do you know you aren't dreaming now?

Confidence--Believe you can and you will. It is your mind--how far will you let yourself succeed?