it should be relatively mild considering how long you have been taking it and the dosages.
you could do a week of 15mg, a week of 10mg, a week of 5mg, a week of 2.5mg then go off. i think everyone's different in terms of withdrawal intensity for benzo's so ymmv, adjust accordingly, but stick to whatever regimen you decide on.
the taper plan i described may be longer than it needs to be, but i think it could help with compulsions to increase your dose again if you are reducing your dosage slowly.
im no taper king tho, and i have no experience being addicted to benzos or opiates so someone might have some better info.
it might be better not getting too familiar with the withdrawal symptoms because you might start to expect them all, but anxiety resurfacing is to be expected.