I was thinking more and more about this ! I think this is probably the root of the evil to say so, i try to chase the movement every time, focusing on higher time frame, swing trading, maybe moving to stocks

I think that just reading this thread is quite eye opening. The fact that so many of us gather here, discussing our struggle with discipline, is already a sign that "being undisciplined is normal".
Once you accept this normality, you can sort of forget about being or not being undisciplined and focus on trading itself.

Aceptance is a big par of the game. Accept your own behaviours, understnad them but look at them with a smile and with some gratitude.
Do not fight for perfection, just enjoy taking reasonable risk and go on with that.

That's my final enlightment after 8 years in this business.

Consistency is a big myth, big gains are always around the corner, big losses can be limited. So push hard when the opportunity arise and be happy if you break even or make small profits or small gains 80% or the days.