Sweet 100 tomato’s are growing lots of leaves but not tomatoes.

Help Please. I am a frustrated raised garden Plot Gardner. I planted a sweet 100 cherry tomato plant which has grown to a huge plant. It has many green tomatoes but few turn orange and rarely do,they turn sweet delicious eating red. And most of the, fall off the vine before ripe. What to do? I am so discouraged.

Also, some of my other tomato plants have near few fruit. Recently, they have been eaten by some critter.

Conversely, my Persian cucumbers are so gorgeous and delicious.
thanks for any guidance you can give.

Anne