Q.tomato blossoms shriveling
My Early Girl plant is huge. Many, many blossoms but only three tomatoes so far. Looks like the blossoms are shriveling up. Why?

This can be a common and very frustrating issue.
Usually brought on by temperature or stress.
Other issues can be lack of pollination, lack of water, insect or disease, to much or to little nitrogen.
Go easy on fertilizer, water deeply, use good growing practices, plant flowering pollinators near the garden, search out plants that are heat tolerant.
https://www.gardeningknowhow.com/plant-problems/environmental/heat-stress-plants.htm