This can be a quick descending debate into the Abyss. So, I will offer my purely non-scientific 0.0000002 BTC worth of thought on this topic.
Start with Technical Analysis because it allows you to practice on shorter time frames >> leading to more practice.
Technical Analysis focuses on training your mind to notice patterns, preferably in the void of Fundamental Analysis.
A large portion of Fundamental Analysis is dedicated to the historical snapshot of the company, instead of the factors determining where the future price will be.
Fundamental Analysis position can be wrong for a long while before it is right.
All that said, I would use Fundamental Analysis for my long term large positions.