summer planting

Well, I planted more cucumbers and bush beans. I harvested cilantro seeds. I am very confused about how I am going to plant all that I want to plant for fall, when so many plants will probably be going strong until frost. I decided to pull up the corn. It was only supposed to get about 3 ft. high and produce baby corns, but it got much taller than that, only ended up being 3 rows when I had intended for it to be 4, and had just started to flower. I don't want to grow corn--it takes up too much space. I also pulled the malabar spinach. I think it got set back by a cold spell in April or May because it did not seem to be getting any bigger. I put lemon cucumbers in its place.