throw things out

I have too much “stuff”. Over the years, I’ve become a packrat. I like all my stuff, but I find I have too much of it and don’t know where to put it all. My apartment is always a mess. I’ve since realized the only way to combat this is a two part mission… throw/recycle/give things away and stop buying things.
I’ve definitely been able to control my spending, but the getting rid of stuff is difficult.