I’d say you start with everything to do with modeling. I know I did at least. For me I found it all very overwhelming, tackling modeling, then UV and shading, nodes, rigging, animation, those were all very new concepts to me and my brain was melting with just all the gotchas of modeling alone. So I said ok ok ok ok, I’ll just focus only on modeling, let me tackle that and master it first, I don’t have the mental bandwidth for all the other craziness. So for the first 3 moths I only tackled everything modeling, shut my brain for everything else until I was comfortable enough to pass to UV Unwrapping. Modeling is after all the basis of it all, so I guess you can start there and shut everything else down while you get use to modeling.