Hey @irfanrosdi,
Welcome!
Your experience with Blender sounds familiar to many I’m sure, including myself.
For me the key was to not to give up and keep practicing, even when you feel like your just not getting there.
Practice, practice, practice.
Your in the right place at CG Cookie, the community is awesome. So supportive and always happy to answer any questions and offer guidance, here and on the CG Cookie Discord.
Happy Blending.