it's got nothing to do with "improving stats". what i'd be looking to do, is improve thought processes.
So if you post a hand, put in your thought process for that hand, and hopefully someone will come and correct it, or perhaps give you a different angle. these stats tell us nothing apart from you play relatively tight, and you call a bit, most likely defeding from the blinds or limping.
You could improve those stats to like a 23/21, with a 5% 3bet and 4% AF, but it won't help you much, you'd just be playing too loose and would likely lose chips in spots you shouldn't, or not extract value where you should.
So basically, don't worry about your stats, and when you review a game, focus on the thought process behind you decision. The action decision in the hand itself depends on your thought process.
thought process affects your decsions, which affects your Results. Get the bolded part correct and the other two will take care of themselves.