Hey Buddy, sounds like you're more than competent in all areas, The only problem I see is I don't see any specific MMA training in there. Do you train specific MMA? If not don't even think of having an MMA fight.
I was the same as yourself. My stand up was decent, My ground game was good and my clinch was alright. Then I went to an MMA class at a full time MMA gym. We did drills from guard where you are trying to submit your opponent or sweep them and your partner can try to keep control and can use strikes.
Just by adding in strikes my ground technique went out the window. We did the same from full mount, Side control and rear mount. Adding in strikes while grappling is a total game changer.
As the saying goes - punch a BJJ black belt once he becomes a brown belt, hit him again he becomes brown, again and he's purple and so on. I didn't realise how appropriate that was till I grappled with strikes. Im usually totally calm on the ground. When strikes are added in I was using so much strength, went into panic mode and survival mode your fitness is sapped. Takes a good few times to get your composure under that type of pressure.