The stability of the forex is never guaranteed as it is dictated by many connective elements around the world. Things like war, oil prices, and global shifts in power are just a few of the elements that effect the forex movements. However most times these changes are not immediate but gradual over time.
There are many companies that are successfully trading in the forex. For the forex trading there are no off days, holidays or time offs. These companies run on 24 hour cycles no matter which part of the world they may be located in.
The forex trading also has its fair share of scams and to avoid this it would be prudent to do some research before taking the word of the forex traders and investing a lot of money on the here say or speculation of a few people. There are no magic formulas that most traders tout and every trade has the accompanying risks.