I done F-ed up. Help please?

by Ilona
(Tampa, Fl)

Hello

I think I made a huge mistake and I’d like help please. I planted three cypress trees about a foot apart, because they’re gorgeous and fill the space perfectly. Then I looked up this type of cypress and found they grow to be very large. What should I do? Is there a way I can keep them smaller and healthy? Is being too close detrimental to their health? Will they survive? Please advise, thank you!

Some other info,
I live in central Fl about an hour outside of Tampa. I have clayish colored soil about 5 inches down. I watered the plants vigorously the day after I planted them. I didn’t put gravel or anything under them, just planted them straight into the ground. I don’t have mulch yet but I’m planning on cypress or cedar mulch, or maybe gravel.