The Raspberry bush

I have but a single raspberry bush which yield a handful of fruit this year due to some pruning mistakes. It is a 3 year old bush that went crazy this summer and had to be pruned throughout the summer to fit the space I'm allowing for this plant. My opinion on growing a plant that will try to constantly expand in a small garden is to simply not allow it too, I vigorously trim them back before it gets out of hand..which it can surprisingly quickly. This bush ended up being a black raspberry instead of red.