Start by putting the kettle on. Make a tea/coffee and move a chair to your hallway, drink it here. Have a look at what’s there. You’ll probably see something straight away you can remove or re-home. Decide if everything there is used often and needs to live there. Consider storing seasonal items elsewhere. Making more space here will be really noticeable.
Do the well-used items have a designated location, which is easy to access and so easy to put away?
Consider:
Putting seasonal items else and swapping out
Do all the shoes need to live here, how many per person?
Do regularly used items have a place to sit/hang e.g purse, handbag, keys, shopping bags
If well-used items just sit on the floor then other items will magically build up around them
What do you do with your post? What would make it easiest to deal with it?