Have confidence in your work- One thing that can lead to the down fall of an RP is if you constantly ask your RP partner if your post is okay or if an idea is okay! Lord knows that it's hard in the beginning to fully gain the confidence to say "Hey, I did a great job with my post and if my partner doesn't like it that's okay as we can resolve it or go our separate ways. Ending a role play because of artistic differences in writing is natural and okay!" Remember, not everyone will have the same writing style as you and sometimes you'll clash. But have confidence in yourself and what you write as it's hard to keep an RP going is you constantly get messages asking if the post was okay and if you need to rewrite it. Learn your writing strong suites as well and play into them when writing, this will significantly boost your confidence!