Paul speaks of Christ's power as if it were a tent built over him. Possible meanings are 1) "people might see that I have the power of Christ" or 2) "I might truly have the power of Christ." (See: [[rc://en/ta/man/translate/figs-metaphor]])
Possible meanings are 1) "I am content in weakness, insults, troubles, persecutions, and distressing situations if these things come because I belong to Christ" or 2) "I am content in weakness ... if these things cause more people to know Christ."
# in weaknesses
"when I am weak"
# in insults
"when people try to make me angry by saying that I am a bad person"
Paul is saying that when he is no longer strong enough to do what needs to be done, Christ, who is more powerful than Paul could ever be, will work through Paul to do what needs to be done. However, it would be best to translate these words literally, if your language allows.