Does almost constantly pushing and pressing on the nose make it bigger?

Hello thank you for your question and I also provided information. Based on your question. My recommendation is that you have a consultation in person with a certified plastic surgeon who will see your case and determine what technique would be applied to obtain the nose result you expect.because it is difficult to be able to orient you if the case does not have photos.

HiPinching and pushing and manipulating your nose will not change anything. If you want your nose shape and size adjusted you will need to undergo a rhinoplasty. Best

No, it won't.  Unless you do it continuously many times a day.  That would cause the soft tissue to swell temporarily.  In addition, pushing on your nose will not change its shape - it is made of bone and cartilage.  Only a rhinoplasty will change the shape of your nose, or fillers to some degree on a temporary basis if you want areas of it made larger.