I've raised all those animals in the past and am now down to chickens - 12 for eggs and 25 meat birds.
I found that the larger animals were really a hassle - fences down, etc, etc. It seemed like an annual ritual - on the day we were leaving for holidays, the steer would be grazing on the lawn instead of his pasture. I've since downsized from 5 to 1.5 acres.
In my quest to reduce my reliance on grocery stores, I'm now more focused on growing fruit and vegetables while trading with friends and neighbours for other things we need. For example, beef and grain comes from my friend's farm.
I try not to be too rigid about it because in my experience, that leads to burnout. I think about WHY I want to live this way in order to figure out where I can cheat a bit. My friends and I tend to community self reliance, rather than self sufficiency. Our latest foray is into the challenging world of growing vegetables year round in Canada.
If I was to do it again, I'd start small - buying at farmers markets, canning, simplfying my diet, making bread, and joining a community garden. I've been living like this for 12 years after a childhood spent around gardens, chickens, and cows and I'm still learning.
And most importantly, I'd find the joy in it all or it can burn you right out.