Thanks a lot Tee Emm for your reply. I heard about there aresuch thing out there, but my instructor is a G1 instructor and I think he is doing his best to help me, so I cannot blame him for this.
I think I am a little bit slow, but definitely not "lacking of ability to be a safe pilot".
If I am at my 20s and doing this full time, I am sure I will move much faster and master it easier. Maybe be able to meet the requirement in military and soloed in 12 hours. However I have to do my office work for a whole week, (brain work most of the time, software devs), and doing my study at night, then fly at weekend, it definitely slow me down a bit. So all I can do is keep at it, being relax, more chair flying and enjoy it. The click moment will comes I believe, very soon.