My garden is a jungle?

My husband made a raised bed for me. I have never had a garden, and I think I did ok at following the directions of how far apart to plant my tomatoes, beans, and such. I mixed in some mushroom compost and used Miracle Grow once...and now my garden is a jungle. The tomato plants are all so huge they have grown out of their cages from the tops and sides...and now the vines are intertwined. The bushes of beans are so huge...I can't even hardly get to my red bell peppers. There are tomatoes covering the vines...but they haven't begun turning red yet. And I haven't seen the beginnings of a red pepper. Could having my plants so huge and out of control inhibit the veggies that are supposed to grow in them? Might my g tomatoes (the largest plant of all) possibly not turn red because the plant shields the from the sun? Or, am I being impatient? I've just never had a garden before.