Who doesn't like quick wins?
Do you use 'and' too many times?
Do you use 'but' too many times?
How about using connecting words, such as: however, although, moreover, therefore...& many more.
Even though I don't know English very well, I decided to adopt Hillis Quick Wins. I therefore, downloaded Hillis Connectors File, and selected 3 connectors to use every week. As a result, or better, consequently, my English is becoming more professional very quicly.