Just wanted to add my support to you, have been following your threads for some time having gone through a similar thing with a similar type of ex. Also have two boys We are now divorced. It will be difficult at first although you might also feel relieved.
Sold our marital home last August and have moved twice since then - am renting as can't afford to buy property here. Can't deny that the moves were difficult especially the second one but I really enjoy living with just me and the boys. They have settled down quite well with a few wobbles and see him regularly.
My well being has improved no end since not being with H. Friends tell me that I am like my old self as for the last eighteen months or so we were together I was not. We have an amicable front but there still quite a bit of bad feeling on my side underneath.
He still feels at liberty to call my new place a dump (it is slightly untidy and still has a few boxes unpacked) but I work full time and have the boys most of the time.
But I just tell him its none of his business and not to say that in front of DSs.
Meanwhile he lives in a pristine minimalist bachelor type flat and has more freedom that I do but I don't really mind about that.
Also a slight connection/spark with someone I met recently but I am in no hurry to rush that along.
I am sure you will feel lonely sometimes but I used to feel very lonely in my marriage as he was often away overseas or at the pub.
Good luck I will be thinking of you.