Q.As below
I have a hyacinth. It has 2 flower bulbs not open, one is dropping and the tip of the other is brown. I think I have over watered but have no means to repot. What can I do? They are house plants and can’t plant outside.

If you think you've overwatered, the only thing you can do short of repotting is to let the soil dry out. Put the plant in a higher light position, and arrange a small fan to blow gently over it. Test the soil moisture with a moisture meter or wooden dowel or bamboo kebob skewer. You can test the soil for moisture level near the bottom of the pot. This article has more information: https://www.gardeningknowhow.com/ornamental/bulbs/hyacinth/hyacinths-falling-over.htm