Tips for block pressure with Omni man?

I am still pretty new to MK, but this is one of the things I have had the hardest times with. Right now, the only real success I have had with Omni-man is when I play whiff punish and or just going for a single hit grab/overhead/sweep mixup on enemy wake-up.

I’m struggling to ever open someone up to where I would actually get a chance to even use his combos. I am just getting bits of damage from grabs and his F2/B4, but never really getting any kinda of mid starters to go into his combos with.

I’m currently trying to mix in his F3 & 22, but haven’t really seen much sixes l there either, I’m just not sure where to even look for help with this.