thx frank m for your input.
the meds anyway dont work forever. so some time i will have to face the bald truth anyway. maybe if im lucky hair multiplication comes out in the next 5-10 years and is affordable and good.
let me see how good or not good i can get my hair. i can always decide to stop taking the meds. for now i try to accept my hair how it is , as tough as this is for me.
now i know at least that my hair is in very bad shape. 
Andy,
If you know the meds won't work forever then why waste your time & euro's on them? You are only fooling yourself and potential girls. If you land a date now and then it all falls out won't that feel like you held something back?
Also, if you are dropping about 130 euro's a month on this now, it will only continue to get more expensive.. imagine if you invested that into stocks or bonds? (I wish I did years ago when I would spend $$ on stuff that I wish I never did)
it may seem like small money to you now, but once you take on expenses like a house, car etc., it all adds up.... but hey, possibly you have a huge bank account that will keep you happy for the rest of your life... if you do... AWESOME!
I guess I don't like seeing anybody going through something that they need not.
You've already taken the biggest step, and that's to shave it all off and be done with it, many people have a hard time getting there and taking that first step, I saw your photo of you with long hair, and I must say that it was quite obvious that you are thinning. At the point you are at now, you can just get on with your life, stop worrying about who is going to notice, what meds are available, and what treatments are available as well, focus on dating instead.
You have written some lengthy questions, but it ultimately it sounds like you want somebody to give you the secret solution, or the answer you want to hear.
You look fine sly / buzzed, much better than you did with long thin wispy hair, and I think most girls would agree with that too, yes there are some girls that do not like a guy with short / buzzed / sly head... guess you won't date or marry a girl that feels that way.
I know I'm an 'older guy' but I doubt you could tell that I'm over 25 years old, I still get carded for liquor.