Not trading for a few weeks was a good medicine for me. I don't know if I am cured yet but it may be.
In the meanwhile I tried creating a system on tradestation, based on the 1-minute timeframe and i did not succeed. It made me appreciate the systems that I did manage to create during all these years and that work very well.
By now what is clear to me is that I will not make money with my discretionary trading, mostly because I am not using a system, I am not even profitable on a paper-trading basis, and if I tried reproducing the methods that my systems use, I would be too impatient to be able to do so.
So, here's what I am going to do. I will wait a bit longer until the thousands of euros that I am short on my account (due to losing so much on the GBL) will bring my account above 2000 again (because the EURO keeps falling).
When my account, hopefully soon, will be above 2000 again, I will place trades according to my systems. I will try not to be stupid and impulsive again. I've done some thinking, a few weeks ago, on this subject of self-control, and I think I might have solved with push-ups and sit-ups. It seems too simple to be true, but all I might have needed all these years was some action, and since I was lacking action in all aspects of my life, I was taking out on my trading. But if I'll do sit-ups and push-ups when I'll feel bored, I might be able to counter those compulsive gambling urges, in that they might be nothing but urges to do something.
During the last two weeks, thanks to sit-ups and push-ups I manged to avoid altogether all urges to eat, to scratch head/nose. Once you understand what you are up against, it becomes easier. It's not about sheer self-control. It's about answering your needs. And to do so, you first have to realize what those needs are. As I said, frustration gives you the desire to kill people who frustrate you, but you can't do it, so you end up doing other things, such as chewing, biting, scratching, trading.
The best thing would be to punch the person who's bothering you, and some children act like this, and maybe those are the more carefree people (or maybe they end up going to jail). The second best thing is exercise. You feel like punching someone at work? Don't go and eat a snack. Do some push-ups. It's the closest thing. Don't go and place a trade. Do some sit-ups.
Anyway, the intraday system does not work, and, rather than trying endlessly to create one (I will try some more but I don't think I'll succeed), I'll go back to my usual systems, which have a bigger drawdown, but I'll use only the best signals. After all, that's the way I went from 4k to 12k in just 2 months (before I started gambling again).
