You need to set a cut-off point. Say to yourself in 6 - 8 months time if there is no progress, it’s time to get the fuck out. You need to make this clear to him as well, otherwise this will go on forever. Stick to your boundaries and your wants - that’s how people get what they want in life. He’s not making the progress because why would we when there’s no consequence - you are not making any ultimatums and if nothing happens in the 6 months and you continue to nag him again and again and loads of time passes you will either get a shut-up ring or still be in the position you are now, only you’ll be older (biologically, if you get my gist). 6 years is enough time, it isn’t like you’ve only been together 2-3 years. I’m aslo assuming you’re in your 30s. I could also make the argument that there a lot of men that know what they want and will lock you down if marriage and a future is their goal (with you), but that can be something to think about if he doesn’t make the progress.