If you are asking permission here to D your H, you won't get it ... because you don't need it. You control your life. Others can not be the swaying vote. Besides, you must have heard our voting system is plaqued with hanging chads
Look, you know your own heart. You face your own fears. If you are feeling that you are nearing the end of your journey in all this, you have our unwavering support to be true to yourself.
If your concerns are largely financial, but you don't feel you must D ... can you get LS for protection? I may have missed in other posts what you know about that. It may not be an option to you. You may already feel it is not the answer and you are leaning to filing.
If so, you will not have come to that point in a rush, or anger of the moment. You have given this "your all". Sometimes people decide they have to "save some" for themselves; and maybe even for someone deserving of "the rest".
If you are not rewriting history, and you see that you were not happy in your M, with your H, you may be answering your own questions .... that you didn't know you were asking.
Talking to an IC and a church leader may be things you owe yourself still. If you file, and continue to counsel up until the last minute it may keep your compass true so there is no looking back in regret one day ... at least for you.