1. Give yourself deadlines.
I didn't have to practice putting words out into the world before I felt like they were ready until I worked for a newspaper ten years ago.Writing articles week in and week out, I realized that no matter how my week was going and how I felt about that week's writing; I was consistently writing articles I enjoyed reading a few days later when I saw them in the paper. You can do the same for your blog readers or your beta readers. Set up a regular deadline, hit it, and read the results several days later. It will take practice to see yourself as the great writer you are.
2. Post a favourable reaction to your work where you can regularly see it.
Whether it's printing off an email from someone who was impacted positively by your work or a review from a reader who loved your book on your fridge or office bulletin board; seeing affirming words regularly helps you dispell the negative voices that can emerge in your head. That red pen wielding inner editor is good for double checking, but not so good for fighting procrastination. Building outside affirmations is a good recipe for inspiring you to take regular action and write,
3. Connect with others who are writing and publishing.
Find others who are where you are and where you want to be. Read what they share about their journey and apply the tips they post. Much of what looks like their individual success is application of collected input from others. No one learns in a vaccum. As you are taking action and seeing improvements to your writing, marketing, or connections; share what you've learned. Seeing what you have to offer helping others is a great confidence booster.
4. Take criticism with a grain of salt.
Notice I say not to ignore criticism. Often we can learn from things others have noticed. The importance is to be discerning. Someone may have a valid point, but a rude or passive-agressive delivery. Separate what is good (noticing what you can use to make your work better) from what you can leave (lack of appreciation for your genre, projected feelings of insecurity, etc.) Good criticism will have information you can apply to make improvements. Bad criticism is simply discouraging and says more about the giver than it does about your writing.
5. Invest positively.
You can invest positively to grow your writing identity. Giving reviews for your favorite books on goodreads.com and promoting articles that were of help to you adds value to others' lives. You know how much you appreciate knowing that a book is a good buy before you invest your hard earned money on it and love to read an article that helps you out without having to go search for it. Make others' lives better in the same way. It will grow your reputation as someone in the know and will help you to see yourself the same way.
6. Be thankful for what is part of you.
Writing is something you are driven to do. Ideas come to you begging to be executed in a way that not everyone experiences. Taking the time to be thankful for that and the joy it brings to your life is a good way to connect with writer you. The process is more than the outcome. Instead of striving for a certain outcome, focus on taking action steps that support the direction you want to be moving in. Progress and growth are not a straight line. Celebrate the whole journey there.