TA is not about predicting the future, its a bout seeing posibilities.
If you get profit from a trade, it is a successful trade. It is of course important to know when to sell.
For me, I bought in at 0.006 and sold at 0.009. Now it is is 0.011 or 12, it can even go up to 0.02 but it doesnt mean this TA was poor.
Try to be productive and constructive rather than destructive. You arent helping anyone...