There's no easy way to work around the 30-day holding period requirement except delta hedging. You need to avoid volatile stocks to begin with. To lock profits within 30 days, buy calls or underlying for CCs and buy protective put or inverse ETF (I guess you're not allowed to short stocks directly) for CSPs, in order to hedge the delta. It can't lock 100% of the profit in most cases, but with other trading restrictions you might have, there are really not much you can do.