A break of structure becomes useful when it is one component of a written plan. Here is one way of building that plan. It is an illustration of method, not a recommendation to trade this way.
Step 1: context
State the higher-timeframe direction in one sentence. Example: "The daily chart is in an uptrend because the last swing low is above the one before it."
Step 2: the break
Define exactly what you need to see. Example: "On the one-hour chart, a candle body closes above the most recent swing high."
Step 3: the entry idea
Many traders do not buy the breakout candle itself because price often pulls back. An alternative is to wait for a retracement toward the level that was broken and look for evidence that it is holding. Decide in advance which approach your plan uses, and whether you will skip the trade if price never pulls back.
Step 4: the stop
The stop goes where the idea is proven wrong. For a long after a bullish break, that might be beneath the swing low that produced the break. If that is so far away that the position size becomes tiny, the honest conclusion may be that the trade does not fit your risk.
Step 5: the size
Position size is calculated from your risk percentage and the distance to the stop, as in the Risk Management lessons. It is never chosen by how confident you feel.
Step 6: the review
After the trade, record whether you followed your plan and what the result was in R (multiples of the amount risked). Over many trades, this tells you whether the idea has any value for you.