Hi there,
You have just started Mercury mahadasha which as you know is the only planet which is BOTH auspicious and well placed for you getting good strength.
I can understand the hard life you've had in your past but I belive mercury mahadasha should be much better for you. You can further strengthen mercury by praying lord Vishnu on wednesdays.
Moon-rahu conjunction gives a worried mind so much so that even in happy times you'll find some reason to worry about- no offence please

Praying lord shiva on mondays can be of great help. read shiva chalisa and chant OM NAMOH SHIVAYA as much as you can every day- say while walking driving, bathing etc.
Can you please share if something significant happened on the job front between aug 2002 and oct2003 like moving job or place. and how was 2007-08 job wise? are you doctor by any chance(surgeon)
Kind regards