Build enough inner structure that external opportunity cannot easily deform you.

Opportunity arrives with a shape it wants you to take, and if you have no shape of your own you will take it. That is how people end up successful in a direction they never chose, doing work that fits the offer rather than the person. Inner structure is what lets you accept an opportunity without being rearranged by it.

Write down what you are actually for, before the next offer. Vague values bend easily. Specific ones give you something to compare against when something attractive arrives.