To keep i simple: if you had success in trading only based on technical analysis, then you were simply lucky. And now that luck has ended.
I hope that your loses are not bigger than the past gains. You should start again with smaller steps (smaller amounts) and gain experience.
This. Your lines and triangles probably just worked well a number of times purely by chance. Technical analysis isn't there to help you predict price movements in the first place, and I'm 100% sure that even the pros in the TA community would agree. It's just there to potentially help you make educated trades with a controlled risk:reward ratio.