There are some potential side effects in the long run. I'd like to change these sentences into expressions that the natives speak generally. "When it comes to eye surgery that enhances eyesight , there are some potential side effects in the long run."

The more I speak broken English, the more I feel stressed. Does this make sense? Furthermore, would you amend these sentences so they can become more usual? "I sort out my thoughts like this. The more I speak broken English, the more I feel stressed. After that, I try to correct my broken English by myself. This procedure makes me improve English speaking skills."

"tend to VERB" or "tend NOUN" Here is full sentence : Their devotion has not paid off, as neither the state nor their children are tending to their needs, according to the report. My question is like this : In my knowledge, we should use either "tend to VERB" or "tend NOUN". Grammatically, "tend to their needs" is right?