Even as a Teacher.. I got lost between everything here! Suggestions please.

Hey there.

I've been hanging around here for the last years.. some years without even logging, some years spending nights and day wandering about..

Now a days I just quit my job as a stock and forex trading teacher in a big college in my state. I did so for a little more than 1 year.. but the IM was always my real passion..
I started my way in it when I was as young as 14! (23 YO now..) can't forget the first 50$!!
but never got it too serious.. The old folks maybe can remember all the "trends" of the industry years ago like "get paid to read, get paid to click, autosurfs, manual-surfs, HYIP's", and all that kind of stuff. I know that those were strictly bulls** but I got myself to get sites like these built and managed by me and I made some cash.

Now that we know better let's get to the point.
I now have the time and the motivation to go serious.
I read any post in this forum from 1st January, 2014. Well I skipped a few that were just like a broken record. Serious. It took me the whole month. And, Lol, I still can't make my final decision and path.

I mean there are so many, and I can really enjoy every single one:

1.Sell your own product
2.Sell others product
3.Sell ad spots
4.Sell a service

and you can do each one by so many different methods like doing CPA marketing, Email solo-ads, sell amazon stuff, make your own website giving others way to earn money, build an app, video marketing, SEO, Create ebooks and etc..

Iv'e seen in many threads that many are succeeding in many variations. And Thats Really good!! Because we all have or will have other places to evolve in..

But where to start?

I got myself starting to promote cpa offers such as "Get paid for taking surveys" and all that and I can take it to the next level by creating a whole site about it and all that but it don't fell to me like a business you know..

I thought maybe to look at the whole thing with poker eyes: Play with your hand, not with the cards on table,

And maybe focus on the Trading niche? as I can consider myself as an expert with 4 years of Trading and 1 of teaching others? and maybe start using every method above to sell some service or product?
but then it get me confused.. are there enough costumers around? "Make money online" is the niche that i got stuck on for years so why don't do that?.. maybe insurance ?

Sorry for the long read but I hope you can suggest what do you think will be the best to go with, as I feel that I'm just in front of the junction.. just pick the road and hit it.