How to I keep the variable once an event occurred? For example, once RSI becomes overbought, I want the condition1 = true, and then look for breakouts.

A simple "if RSI (close, 14) < 30 then condition1 = true" doesn't work, because in the next several bars it can move above 30, while the breakout I want hasn't happened.
How do I keep the condition or a variable the same once it occurred, even if it changes in the next several bars?

Small Dog 

How to I keep the variable once an event occurred? For example, once RSI becomes overbought, I want the condition1 = true, and then look for breakouts. A simple "if RSI (close, 14) < 30 then condition1 = true" doesn't work, because in the next several bars it can move above 30, while the breakout I want hasn't happened. How do I keep the condition or a variable the same once it occurred, even if it changes in the next several bars?

Surely it can only change back if you change it back (or reset it)?