The best advice is available in the internet: FREE! Just look at Warren Buffet quotes and shareholder letters. Forget about trading: most traders lose and so do the "mentors".
Reading the paper and the references leads to quite a humorous conclusion. Think about it. How can these people all be so careless and uninformed? It is very possible that someone could read this "assessor" stuff and think that they had learned something. What did all these people leave out????
There are some great resources on Youtube for free. Just do some searches and find the ones with some credibility.
Fibonacci. Elliot Wave. Gann. Darts. Standard deviations. Chicken bones. These systems are just as arbitrary as the next for picking entry points. It doesn't matter which system you use as long as you have sound risk management in place and know how to take profits.
uh, your title of the thread and the opening comment do not match you should state your thesis (title of the thread) then your comments, then expect continued commentary, its no wonder such a poor presentation, which essentially is an interview or solicitation for an employer (mentor) really is, its no wonder your efforts have not produced results you expect its called symmetry of thought process, which is an essential factor in interviews and evaluation of candidates, and also, an essential thought process that math majors learn in their earliest classes. Incidently, they make the best traders!
You still need something where the odds are not stacked against you. No risk and money management will help you to win in roulette on the long term.
To answer the OP question: yes it is very hard to find a mentor. Nobody is willing to enter this kind of trading marriage. However, having said that, if you have the gift, desire and can develop discipline you can pick up bits and pieces here and there and then put a system that will produce. It is not easy, time consuming and money will be lost before you will see the light at the end of a tunnel but it is doable.
I thought open-source is in vogue these days. Your damn right it is and it should be! As such, if you would like to obtain a "free" peek into this noob's trading system that took over 10 years to master, I encourage you to visit Unholy Grail to Success. After all, there's no better value than free.