Doing a full press-up is very, very achievable but not as easy some think. You just try it a few times and expect to go from not being able to bend your elbows to a correct full press-up
There are many muscles involved in doing a correct full press-up. Because there are so many muscles involved, for a beginner, until those muscles strengthen, it takes a while. That is why it is important to have patience and practice, if you want to do a full press-up in the end.
These are roughly the main muscles press ups work. There are also the oblique muscles (side of the abdomen), lower and upper back muscles. The whole mid section of your body need to work to keep you in the right position.
So you see, it cannot happen over night. Work and consistency needs to be put into it. So I have put together a video with how I managed my full press-ups and how I helped my clients who really wanted to do this. Hope it’s good enough to help you as well.