Switch career or Stay with Current Job

My age is 27 years, 28 is coming in for few months. Now I'm in 2nd job as a Operation Technician in Oil & Gas industry, the pay and allowance is good, but recently I having trouble with sleeping because of the duty rooster. I work for 2 days(1 day shift, 1 night shift) then rest 2 days, I have trouble unable to concentrate when on duty. I tried ways to cope with it, but still unable to adapt it. Meanwhile, I go to find and switch to other career, in my mind, I'm a close minded person, but I wanted to interact with more people and provide assistance/help to the community/public, something like a public servant. I don't have any commitment for now, will happen in future yes. Is it too late for me to explore what I have realise that I actually that I wanted to do for my path from the beginning?