The word ‘Can’t ‘ tells your brain you are in capable of doing something successfully, so even if you have a go, your mindset wills you to fail because you’ve programmed yourself to do so. Eliminating ‘Can’t’ makes it easier to take risks, so, even if things don’t work out exactly as you’d hoped, you tried -and that gives you confidence to try other things. It also forges reliance which helps you feel safe and happy.
INSTEAD: Decide if it’s really a case of you physically being unable to do it or just a way to excuse yourself from something you do not fancy doing. When you say you ‘Can’t’ push press 130Kg , OK you ‘can’t’ do it right now without consistent CrossFit strength training, but are you really physically incapable of putting in the hours or do you just not want to?