You never know a trend change until after it happens. Anything before that is a pure guess. It’s much easier/better to assume a trend continuation.
Why is it being drawn now instead of at the beginning when it mattered? ---Also, there are numerous lines that aren't drawn so it appears that the line you drew has been cherry picked.
you need to work harder. such a nice-looking chart happens in one out of every 100 charts. most charts are choppy. That is the main reason why > 90% can't make it.