Rejuvenating interior stained concrete floors

Go by a local paint store and get their advice. Not a box store. I think there’s 2 ways. Applying another layer of sealer but that would require moving the furniture out and not sleeping there for a night or 2. The other one is wax. But from what I remember if you wax you may not be able to reseal so I don’t wax mine. Sealer is imo the better long term solution. While your at it I would apply 2 new coats. Local paint professional generally sell the sealer and are pretty knowledgeable so I would see their opinion.