Uncertainty in the forces - is perhaps the most important reason of this problem. In fact UTB psychological reason, and it very much depends on the individual. Such people often drop all the way to the floor, or meet the first major failure, begin to read and speak all that - it's all garbage and scam. What is this all RNG all podkrucheno so on. You may have encountered such people more than once.
Laziness - or attempt to do it right, and do not feel like. If you want to chegoto achieved, it will have to invest time and effort, or even better not to take, just goes to waste time and confidence. Surely you remember when being more green fish in poker you think that right now, go down at the table for 10-30 minutes planted American fish and wake steep pepper. So this does not happen. BMA course may be lucky, and really an hour can increase his fortune say from 30 to 150 dollars. But it will not last you are sure to flood all of his money next time. Professional way - this is not the reliance on luck and faith in our strength and skill and further self-development.
Short-term planning - no need to pay more attention, if, say, per session we lost a few buy-ins, though played correctly. Do not need to change anything, play their game, such rejections and Streaky are, you will soon get used to them and wake up only look at the chart EV, and simulated distance will return you to your short-term losses. Keep this in mind and play for EV.
Serious attitude to the game. The game odds
fan - if you want to make a poker - treat it just as a job, if the same to you is entertainment in the evening after work with a beer - that applies both to the game. Need to understand the differences. Once will not work to earn a poker if you treat it just like a game.