I don't think that following suggestions cover everything on the topic, but you can certainly use some of the steps given below for effectively ending your Writer's Block. Even if you have not been into a situation like this, some of these suggestions would help you stay away from it.
1. Scribble Freely:
Write down your thoughts and feelings without giving much attention to the quality. Devote some time for scribbling and do not think about the audience while writing. Write as fast as you can and let anything and everything come onto the paper. Defer editing until the climax.
2. Don't put yourself under the burden of the statistics:
When you produce a work of great quality, expectations are set high in many ways. People might come and appreciate you sincerely and you might see your book's sales soaring high in market. This all might create a great urge to produce a work with quality as high as the one which received wide acclaim. This hinders creative process sometimes. At other times though some people might create their best pieces and later on when they reflect on their creations, they wonder how they could create those marvellous artworks under overwhelming pressure.
3. Write For The Joy Of It:
Enjoy your writing and make it a game. Compete against yourself and give yourself quotas. If you love writing, then there will be very few chances of getting too critically affected by negative feedback which you receive for your writing. When you enjoy the process, you don't get too many thoughts about the product, which boosts your ideaphorea.
4. Write Regularly:
No matter whether you publish regularly or not, try to reinforce the habit of writing on a regular basis. Leaving a few exceptions for some special and very creative ventures, the habit of procrastinating takes tolls on your neural pathways. If you're waiting for some important task to be completed before you really start writing, may be it will be too late to write before you finish that task. It's better to create your own goals and personal quotas and to scribble something or the other every day.
5. Portable Memory Bank:
This technique is part of core techniques of ProjectRenaissance. This is based on the simple observation that we let our creative insights slip away by not giving enough attention to them as soon as they occur to us. Our subconscious mind keeps on sending great number of perceptions to our conscious mind, but because of systematic conditioning of blocking such perceptions, before they could be made conscious, we tend to suppress these perceptions. Some of these suggestions from our subconscious hold the key for many problems. The technique is based on the idea that you might get your creative inspirations for writing at any time and not necessarily when you 'sit to write'. The technique is simple: You should keep a small notepad and pen with you, no matter where you go. As soon as you get an idea, do care to put a few words about that idea down on the notepad. Later on, you can read those ideas and reflect on them and analyse and scribble on them and sleep on them. These ideas will lead you to even more ideas, snowballing into an idea-base worth hundreds upon hundreds of high quality ideas.