i agree wholeheartedly with all of the above. would like to add that i think your perceived difficulty is completely normal at two-three weeks.
although i dont prescribe to white-knuckle day at a time sobriety for the long haul, it definitely applied to me in the first couple months.
new habits take practice.
healing takes time.
if you have the time or means to enjoy any luxuries-herbal teas, snacks, hot baths, movies, books, etc. i think they help in the early days.
and-CONGRATULATIONS!