GAPAN, in conjunction with EPST, conducted a survey of, quote, 'ten UK airlines ranging from large scheduled carriers, regional operators to charter airlines' and question 3 of
that survey provides you with some information that may be of use.
You should also do a search of these forums for the opinions offered to other people that found themselves in the same position as yourself. It's a question that has been asked many times. Indeed, I think the Sticky at the top of the forum even has links to one or two of those threads.
{Edit:
Here is the sticky - look about half-way down.}
Sufficed to say that some people arrived in the aviation sector at a later age than you or I and managed to find work. However, I've tried to ensure that my expectations are a little more tempered than those of a fresh-faced youth!
Hope this helps.