C# (Visual C# Interactive Compiler), 197 bytes
s=>{int y=new Random().Next(10)+1,i=0;for(Write($"How to {s=s.Substring(9,s.Length-10)} in {y} easy steps!\n\n");i++<y;)Write($"Step {i} - {(i==y?(char)(s[0]^32)+s.Remove(0,1):$"Do not "+s)}.\n");}
Gymhgy
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