Although I don't live in the U.K., I have certainly experienced what many there who currently seek a full-time position in OH&S - very limited career opportunities for those new to the field. While there are certainly no guarantees in life, when I was unable to gain full-time employment in OH&S, I continued to pursue more formal education in the field; I considered it an investment in myself, and my future. It certainly took a while, but I was eventually able to secure a position, and have not looked back since. It isn't unusual for any of us to find a career opportunity that at that moment we are not qualified for, only to see another similar position posted several years later, where due to the fact that we did nothing in the interim period, were again unable to apply or be selected for the position. I say this because I have had this experience more than once in my life. Keep the faith as they say, but also consider that continuing your OHS education now may be an excellent investment in your future.