I did say you were too rush,Your experience is still very low compare to the others.
It take years to create a stunning work,One of my favorite artist use his time almost 6 years to become what I have seen 3-4 years ago and everybody admit his skill,which means it almost 10 years or more than that to become a professional artist.
Being a freelance artist is not something that you can managed in just 1 year,A lot of great artist spent a lot of time on training himself.
Even the young one as well,actually she has already been practiced a lot in art theory ,so it won’t take long before she can get good at the tool.
It does not take long time to learn tools.
Imagine it’s a sword,It does not take a lot of time to grab and give it a few swings.
But it took a lot of time how to use the sword properly.
Another one example is Bachelor degree,I believe you know that by standard of any career in the University require at least 3 years up to 4 years by default before you can graduated.
It’s also apply in the same way,even for a bachelor degree you need to spend 3 years at least before you can graduated.
Creating a showcase is not something that you can take it lightly,if you have a time please visit my profile and have a look at my project,It took me 6 months to crate those from someone who had already have some experience on 3D programs.
Beside ,it’s not like that you can just use Blender for everything ,you need to learn more tool that Blender as well.
So,your task is a long road and a tough one,as Jonathan Lampel mentioned above.
if you are tired ,rest then come back,don’t stress yourself too much.