Regretting not having cash during the dip, but hate selling my winners

I’ve been investing in tech company for a long time and luckily, I’ve seen some pretty solid gains. Right now, I keep a few months' worth of salary in my savings account as an emergency fund, but everything else is fully invested in the market. The problem is, whenever we hit a downturn like the tariff issues or Iran war this year, I never have any cash left to buy the dip. On the other hand, now that the market has recovered, I find myself hesitating. Feel like lowering my equity exposure will make me miss out on potential gains during a bull run. Do you actively take profits to maintain a cash position, or is your strategy to stay fully invested regardless of market swings?