The thing is, if I shave my hair, everybody will see how bad my hairloss have become, I'll not be able to fool anybody anymore after that. Moreover, it will take me 6 months at least to grow it back to the state it looks now which allows me to look like I'm not practically bald.
Hi Jonsey,
I can't help but notice that you refer, in your posts to "fooling" people about how much hair you have. "Fooling" is a gentler way of saying that you are intentionally lying to everyone around you on a daily basis. You aren't being honest with others, or yourself. That fact comes out, whether you know it or not, in everything you do. If you aren't self confident, it shows. 
You are having anxiety about the state of your hair and your hair loss.
Why not be honest? You have been balding for half your life. You have committed years and years to maintaining the illusion (lie) that you are not balding. Sooner or later, nature will not give you the option of continuing to "fool" people.
You cannot control the loss of some of your hair, nature is in control of that. You are going to lose some , if not most of your hair. But you CAN be in controll of whether you have ANY hair. If you CHOOSE to take it off, them YOU are in control of your appearance. If you let nature slowly take it from you, it is LOST. Make sense?
Why be a victim of nature? Why not take control of your own appearance and literally REMOVE the lie you are showing the world day after day? Simple addition by subtraction. Rather than continuing to be a "man going bald" you can choose, like so many of us to be "a man who shaves his head".
Make this choice for yourself, not others. Who do YOU want to be? The honest, confident, happy guy with the shaved head? or the self-conscious balding guy, always worried and preoccupied with whether or not you are "fooling" people?  
I say, shave it and own it. Be confident in your choice and yourself as the master of your fate. Men and especially women say time and again that Confidence and self respect are the things that are attractive and that truly matter. You can't have much of either if you are constantly concerned that people are going to notice that you are losing your hair. You are here talking to us about it, because you want to be free of the burden that is your hair loss.  
let's say, hypothetically, that you continue "fooling" people. You meet a nice girl you like. Are you going to be able to relax, be yourself and get comfortable with the weight of your hair loss hanging over you? Or are you going to be nervous about whether or not she notices it? And even if she doesn't at first, at some point, as you get closer, she will find out about it anyway. Why not just take it off and be a bold, decisive and above all honest guy who has come to terms with the realities of nature and chosen to take control of his situation. 
Shaving your head is simple, inexpensive, clean, honest answer to a problem that has been plaguing you for years.
Just my two-cents. Best of luck in whatever you choose to do.