Reading Fluency
Sally Shaywitz recommends repetitive reading in her book Overcoming dyslexia. I must admit I did find repetitive reading very tedious, but it really helped me increase my fluency. So I strongly recommend you to persevere with it.
Choose a paragraph, poem or a short story at your reading level. The idea is to choose material that is not too hard or too easy.
It should be material that interests you.
Have a fluent reader read this passage to you. You may want to record them reading. It is also useful to time the reader.
Then you need to read the passage repetitively until you can read it fluently. Try to match your pace and tone to that of your helper. I would recommend reading the same passage at least 5 times per day for 5 days or until you have mastered the passage. Repetitive reading really does help.

Reading Vocabulary
It is very important if you are Dyslexic not to let your vocabulary slip behind your year group. This can happen if you are not reading as much as others, or if you are reading at a lower level than others.
Here are some tips to make sure you keep up with your vocabulary.
Audio books are readily available now, both electronically and also at your local library make use of these. You may want to listen and read along with the book or you may just enjoy listening.
Everyone kept forcing me to read but sometimes I just wanted to listen and enjoy. I love novels and I think it is wonderful that I can now be exposed to them via Audio. By listening you get to experience a wider variety of vocabulary and you get to enjoy different writing styles.There is a lot of vocabulary in books that Dyslexics need to be exposed to.
Watching good quality TV can also help with vocabulary.

Reading comprehension
Big picture thinking is a common dyslexic strength so as a dyslexic it is useful to use our strengths to compensate for our weaknesses. To comprehend a piece of writing it is very important to know the big picture or the gist of what the book/ passage is about.
Ask your teachers for an overview or synopsis of any required reading. Also if they can give you a list of keywords related to the text you are about to read. Look for clues yourself any pictures, underlined or highlighted text.
If you are reading non-fiction it is helpful to know the real life relevance of what you are about to read. Get curious ask lots of questions or find out what you can before you start reading. This will really help your comprehension, memory and motivation.