I would work on physicals, i.e. strength, endurance, agility. I would build up your wrestling. Work on secondaries i.e. takedown Def, Escapes, transitions, and clinch. Build up your BJJ to a high purple or brown. This should give you a good base for a decent striker. Get that wrestling to wonderful and def grap to wonderful, at the higher levels the strikers with good wrestling tend to dominate.