Being able to determine if it is worth becoming google analytic certified is a question that you should ask yourself? In order to be a web analyst currently doesn’t have a overall certification or licensing which means that you do not have a mandate to have any standard training that is asked from a accountant, teacher, insurance salesmen or degree based career path. In order to work with many companies that deal with google analytics why not come to them certified in the use of google analytics.
Google analytics academy will help those who are beginners to advance for no cost to you
Target internet is another source you can use to help with becoming google analytic certified
Learn 8 steps to getting google anayltics with digital branding institution
There are many other programs that can help you become google analytic certified through paid or free programs.
If you are looking to become a web analyst why not if it makes you more attractive to potential clients, employers or if you are online business seeking to make a productive income producing business.
Good luck with your mission and have a plan of action that is best for you.