Is this niche profitable in English speaking populations?

Hello Warriors,

A while back I opened a topic about niche selection, mainly complaining about how every profitable niche seems to be saturated already. The thread generated lots of replies, and almost all of them pointing out that the presence of competitors in any market is a good sign, meaning there's actually money to be made in that niche.

Also, there was a fellow who said that I am in a lucky position as I live in a niche and I should take advantage of it. What he meant was that living in Hungary puts me in a position where I could have a first-mover advantage possibly in several various niches. At the time I did not give much consideration to his thoughts, but I've been doing some research lately in the Hungarian cyberspace.

The results are quite surprising, to say the least. Looks like I do live in a niche. Either that, or the interests, needs and problems of the Hungarian people are very different from the English speaking population of the world.
Yes, some of the niches have well-established competitors, like the dating niche or the make-money niche to some extent. But in other niches where I expected more competition I have found none or very little. These are the self-development, health, psychological well-being, etc.

This surprised me as for one, my country has one of the worst statistics in connection with physical and mental health, and for two, self-help and psychology books seem to be quite popular and in demand. And yet, all this does not reflect in the online world.
There are sites about these topics, but these are mainly run by enthusiasts and hobbists.

So, I guess I shall ask two questions of you:

1. Are topics of like psychology, self-help, stress management, mental well-being are popular in your countries? Would you say people search for this stuff online and are willing to pay for information?

2. Do you think it's a good idea for me to start an online biz in this psychology-self-help field (mind you, I am a psychologist by profession)? The lack of competition should be a warning, yet other factors clearly indicate that people seek out help and information in this area. Could it be that the lack of competition is just a sign of the Hungarian cyberspace not being as commercialized and well developed as the "English web"? Online trends and inventions tend to arrive a few years late to Hungary. For example, blogging is still in its pre-commercial phase in Hungary with only a few companies taking advantage of this web 2.0 technology. Could this delay be the cause of "empty" niches?
Could I be a successful first mover?

Well, turned out to be more than just two questions, but I guess you know what I am trying to get at.
Any thoughts, insights, suggestions are very much appriciated.

Zsolt