Always get your facts right. Don't misrepresent. 

Writing takes time. It means you will need to find that time. 

Read good writing—Dickens or Baldwin or evolutionary biology textbooks or the Old Testament, whatever holds your attention.

It's up to you to become a good writer and you probably already know everything else you need to know, somewhere underneath the noise and the anxiety and the outside instructions.

Writing is about thinking, researching, contemplating, outlining, composing, then maybe some typing with revisions as you go, deletions, additions, reflections, setting aside and returning afresh.
Typing is what you do in the middle of the two vast thoughtful processes.

There is no substitute for writing. 
Start small. Write a good sentence, then a good paragraph. Write a lot. You might not be great from the start, but it is the road to good writing.

Success is very nice, but it is not love. It is at best the result of love of the work, but not of you.

Talent is overrated. You need passion, vocation, vision, and dedication to get you through the rough spots in your style.

Feedback is great, but there are times when you know exactly what you're doing. Listen to what makes you move or stops you in your tracks.
Listen to your own feedback and realize that you move forward through mistakes and flawed but aspiring work. Write for other people, but don't...