Davids, As one of your coaches my advice would be this- Concentrate in the area's you know you are weakest.
Against white belts try and only use submissions and sweeps on your 'bad side'
Against Blue Belts try and fight each opponent from whichever position he is at HIS strongest,because if you can win when you're allowing
him to play his game then you are doing really well.
Against Purple Belts try and use your absolute A game and give them fits,never let them get their grips,be relentless in your attacks so they
have to defend and keep your base and posture at all times.
Against Brown and Black Belts- Have a plan,just try and achieve 1 sweep,or 1 guard pass,just think about what you want and try and get it.And don't
get tapped as you're trying.