Again this is for a 1-minute chart, not 15 minutes. I can't choose a 1-minute chart since it's too low of a timeframe. Please be aware, to use 1 MINUTE CHART for this posting.
Buy BTCUSD when RSI hits level 30. I bought it beforehand in the green box. But it doesn't matter because buying when it's at a low 30 it will still go up. As you have seen on my other postings, I can't edit stuff so look for youself where I predicted and it always hit! I share as much as possible, I want everyone to make some extra cash.