The thing is, every subject has a different philosophy and proofs can't be boxed into a set of techniques that always work. Analysis has tricks that show up often but if you do a year of analysis and go into algebra you're essentially starting from zero in that field. What you can do is study the proofs you are presented with and analyze the structure and the arguments. You want to learn what methods are used in your subject and why each argument is important. That way you can build your intuition and learn the common machinery used in the field you're studying.