After searching I have ended up with approximately 40 journals related to my topic I don't know how to proceed to write the review how would you proceed step by step?

Briefly review the highlights of each, pick out about 4 to 10 main points, read those areas in more detail and write a report

Do you know what your paper will be about? Do you have an outline? Like Chuck said, list keywords, then read the articles' abstracts to figure out which articles would be the most germane.

How did you find the articles in the first place? Didn't you have a game plan?