Nothing like experienced cyclists (who are confident in working on bikes) telling inexperienced cyclist to use inferior tools to learn how to work on bikes. The proper tools can be bought for $25 - $40. These tools should be used at least once a year to o'haul the BB. Granted the OP's BB probably needs less than 1/4 turn of the NDS cup then thighten the lockring. The proper tools will allow this procedure to be easy. Holding the NDS cup in place while the lockring is properly tightened is easily done -- with the proper tools.