Hi all, Just after some advice I'm aware or what share washing...

Hi all, Just after some advice I'm aware or what share washing is, but just wondering if it would suit my situation. The few stocks I down own I am currently down a large amount on (40-50%). As tax time is not far away I am wondering would I benefit from washing? As in selling them off then instantly buying back? As from what I hear/understand this loss can then be deducted from my taxable income? The only disadvantage I can see is that since I have held these shares for just over a year they currently fall into the smaller capital gains tax bracket, where as if I wash and re buy I will have to wait a year until the new shares fall back into that bracket? Appreciate advice Cheers