the simplest option is this as soon as the xp needed to double takes effect you get 10 skill points per level instead of 5. Arguement over.
We all look back and wish we knew then what we know now, and wonder how we would do it differently if we had the chance. But we don't, so we make mid-course corrections. You will perhaps be surprised how fast you can change things around if you focus on doing just that, and not improving other things.