my brother in law's wife's first job nature is similar to you, but near 20k per month in a firm before.
about 3 to 4 years ago, she was layed off and very anxious looking for another job. she is also f.5 only and even considered to be clerical officer with 8.XXk only in that period.
later she found a similar job from an agency with about 2Xk. she was happy. within these 4 years, she jump once more through agency. now her salary is above 40k excluding bonus and triple pay. she said experience is important in this field.
P.S. her first firm is a big stock agency similar to Morgan somthing and therefore she was always ot till 10:00p.m. previously. because of the children, she changed to a bank's stock section and can off not later than 7:00pm now.
all her good jobs are from agency, therefore dont look down your experience and yourself. your quali is not a must. TRY by visiting agency. maybe you will find outside is so beautiful!!